I was created a film project under 24P PAL. Project already 80% done. Some how I need to transfer this project to 25i PAL system. I know I need re-capture all my muster clips but I don’t want to lose my edited Sequence’s. How I’ll do this job without losing my last edit?

With v4, you can just open your 24p sequence bin in a 25i project.

However, why do you need to switch formats? Sounds like disaster waiting to happen.