No worries ghostie!

Not quite sure what you mean by format of the second readings? Do you mean the process of a bill throughout parliament, of which second reading is just one part, or do you mean just the second reading part of the bill?

If you mean the whole process, for a public bill (the most common, and not counting private members bills), the following stages take place in both Houses:

First reading (formal introduction of the Bill without debate)
Second reading (general debate)
Committee stage (detailed examination, debate and amendments. In the House of Commons this stage takes place in a Public Bill Committee.)
Report stage (opportunity for further amendments)
Third reading (final chance for debate; amendments are possible in the Lords)

When a Bill has passed through both Houses it is returned to the first House (where it started) for the second House's amendments to be considered. Both Houses must agree on the final text. There may be several rounds of exchanges between the two Houses until agreement is reached on every word of the Bill. Once this happens the Bill proceeds to the next stage: Royal Assent.

If you mean just second reading, that is just one stage of the bill. It is the first chance for either House to debate the Bill as presented before the House. No amendments can be made at this stage, there is simply a debate, followed by a vote in the House. If the vote is successful, the Bill will go to committee stage, and follow the stages listed above.

Hope you find that helpful - any more details you require, let me know.

I was asking for the format of the debate itself.

I know that you have a mover, and then an opposer of some sort, who each take the dispatch box, but how does the debate run.

(ie what is the order of things happening etc.)

Format of debate:
During debates, Members may speak only if called upon by the Speaker(the presiding officer). Traditionally, the presiding officer alternates between calling Members from the Government and Opposition.
Speeches are addressed to the presiding officer, using the words "Mr Speaker," Only the presiding officer may be directly addressed in debate; other Members must be referred to in the third person. The Speaker enforces the rules of the House, and may warn and punish Members who deviate from them. Disregarding the Speaker's instructions is considered a severe breach of the rules of the House, and may result in the suspension of the offender from the House. In the case of grave disorder, the Speaker may adjourn the House without taking a vote.
The Standing Orders of the House of Commons do not establish any formal time limits for debates. The Speaker may, however, order a Member who persists in making a tediously repetitive or irrelevant speech to stop speaking. The time set aside for debate on a particular motion is, however, often limited by informal agreements between the parties.
When the debate concludes, the motion in question is put to a vote. The House first votes by voice vote; the Speaker puts the question, and Members respond either "Aye" (in favour of the motion) or "No" (against the motion). The presiding officer then announces the result of the voice vote, but if his or her assessment is challenged by any Member or the voice vote is unclear, a recorded vote known as a division follows. When a division occurs, members enter one of two lobbies (the "Aye" lobby or the "No" lobby) on either side of the Chamber, where their names are recorded by clerks. At each lobby are two tellers (themselves Members of the House) who count the votes of the members.
Once the division concludes, the tellers provide the results to the presiding officer, who then announces them to the House. If there is an equality of votes, the Speaker or Deputy Speaker has a casting vote. Traditionally, this casting vote is exercised to allow further debate, if this is possible, or otherwise to avoid a decision being taken without a majority (e.g. voting No to a motion or the third reading of a bill). Ties rarely occur—the last one was in July 1993. The quorum of the House of Commons is 40 members for any vote. If fewer than 40 members have participated, the division is invalid.
The outcome of most votes is largely known beforehand, since political parties normally instruct members on how to vote. A party normally entrusts some Members of Parliament, known as whips, with the task of ensuring that all party members vote as desired. Members of Parliament do not tend to vote against such instructions, since those who do so jeopardise promotion, or may be deselected as party candidates for future elections. Ministers, junior ministers and parliamentary private secretaries who vote against the whips' instructions usually resign. Thus, the independence of Members of Parliament tends to be low, although "backbench rebellions" by members discontent with their party's policies do occur. A member is also traditionally allowed some leeway if the interests of her/his constituency are adversely affected. In some circumstances, however, parties announce "free votes", allowing members to vote as they please. Votes relating to issues of conscience such as abortion and capital punishment are typically free votes.
See also http://en.wikipedia.org/wiki/House_of_Commons_of_the_United_Kingdom#Procedure

Ok.

The only thing that remains slightly confused for to me is this:

During the debates for second readings, I am aware that you have a sort of proposer and a sort of opposer (lets ignore private member's bills for the time being)

The first speech goes to that proposer (who I understand is said to "move") and then the second to that opposer. Then I understand that there is an open debate, although I am unsure about that. Then at the end of the open debate, do any particular speakers get to speak (e.g. the leader of opposition or the mover)?

In Canadian parliament, which I believe is exactly the same, the proposed bill has preset speakers depending on which party proposes the bill. If there were only two parties it would go back, but since there are four priority goes to the moving party and then to the govenment and opposition respectively. For example a Conservative bill might go: Con,Lib,Con,NDP,Bloq,Lib,Con,Lib,Bloq,Con etc

The partys submit who will be holding their speaking times and the speaker calls upon them in order. The debate isn't "open" in that sense. It also means that the party leadership is usually doing most of the talking.

There is a lot wrong with that Wiki article - several things in fact, which I need to correct tomorrow. I'll also answer in more detail the proposer and seconder issue - again, it's slightly wrong, but its fairly simple, but often got wrong!

Wait till I get back, and I'll let you know!

bounce

getting dangerously low and awaiting a response.