NumTumDeDum - `Bundles are to be agreed and if not agreed the issues are to be brought to the judge's attention'.
Bundle contents need to be agreed `if possible'. In a large number of cases a solicitor preparing a bundle won't agree to the LIP submitting any documents whatsoever leaving the LIP with no documentation.
As for bringing it to the judges' attention that is usually a waste of time too. A judge is extremely unlikely to make a costs order especially as there is very little a LIP can claim for and most likely to order an adjournment to try for a proper bundle second time round - which means someone (usually the respondent...) benefits from further delay contrary to the no delay' principle and reinforcing the status quo (usually of little or no contact).
In light of all this I'd advise anyone I am assisting to take their chances with a judge and prepare their own bundle rather than be faced with a solicitor suggesting they have complied with practice directions and the dumb LIP hasn't bothered to submit any documentation and in line with the no delay principle the final hearing must take place today.
When this happens the court usually a) thanks the LIP for assisting the court b) gets on with the case c) doesn't say anything to the solicitor.
If you're a solicitor you likely know this however. 
dunfightin - there should be:
An index of documents.
Section A - skeleton argument, chronology, statement of issues, draft order (optional).
Section B - Applications and orders.
Section C - Reports (CAFCASS, etc.)
Section D - Correspondence and evidence.
Section E - other documents.
The whole thing should be paginated. If it's a final hearing there is likely to be cross examination too so you'll need questions for your ex. The documents in the bundle can be used in conjunction with these questions to support your argument.
As you're LIP you're ex's solicitor should put this all together so your documents and his go in together, but don't be surprised if they mess things around (as detailed above). Don't be surprised if the judge/magistrate don't read it before they see you - they should do but they don't always get the time. Check the practice directions for the timetable for agreeing documents and getting them to the court on time too as they can refuse them.
I tend to ensure that documents are sent via courier/recorded delivery or better still hand delivering them to make sure that you know for definite that the paperwork is there.
In theory this should be an easy process...but remember - what happens in practice has little bearing on this! 