I don't think we can help you with your entire logbook, no. But I'm sure we can help with specific issues.
The first thing is to understand exactly what it is that you are required to log under JAR. Have a read of
LASORS, Section A, Appendix B (page 56 of the .PDF file, with page number 38 of Section A printed at the bottom of the page), and if there's anything specific in there you don't understand, come back to us and we'll explain it. Understand the differences between how to log time under FAR and JAR. (You clearly already understand some of the differences.)
As for the exact amount of hours to claim, if you've got several hundred hours in your logbook, it is obviously going to be a pain to re-calculate all your hours. So, where you obviously exceed the requirements, don't bother - just make a rough guess at how many of the specific type of hours you've got, subtract a bit (to be on the safe side), and use that. For example, this is what I do for cross-country hours. My logbook doesn't have a column for cross-country hours. Under JAR, cross-country means more than 3nm from the airfield - in other words, anything except circuits. So I make a rough guess of what percentage of my total flight time is anything other than circuits, and use that. As long as it's lower than the actual number, but higher than the required number, everyone will be happy.
When you are close to having exactly the required number of hours (as you appear to be with your PIC time), I don't think there is any way around it other than to add up the hours line by line. Time consuming, but necessary.
Hope that helps.
FFF
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