Trip Movie Help!!!!!!!!!!!!11

OK, my story starts like this:

I went on a trip to Kharkov, Ukraine, this past summer on a mission trip. I work with great kids, take pictures, and come home. I edit the pictures and create separate MPG2 720x480 slideshows of each event (ex. VBS, youth program, etc). All total I have about 32 minutes of pictures.

I want to piece them together with my favorite editor, ArcSoft ShowBiz, but it just has problems! Anyway, I move on to my next favorite editor, Movie Star by Dazzle. It pieces the files together just fine, but the audio and video become greatly out of sync.

Does anyone know a FREE solution (I'm 13, I don't have loads of money!) to this problem?