AFAIK you need to get the scenes you want in AH film viewer (AH 1) and convert them to AVI or whatever, it is in the software.
then codec you use makes all the difference, but i know nothing about which are good.
basically then take those 500 AVI's and using a movie editor (like windows movie maker) and make your montage from there.
the real time will be using the AH film viewer and converting the AHF's. thats like hours and hours of work, getting the camera angle you want and all.
once they are actual videos the editing should eb a snap.
oh well that all i know. i tried it once, the vidoe looked like junk, was like 90mb for 3 minutes, and it froze my PC countless times.
good luck sir and dont give up.