hello there!
if i understand you right, than there are several ways to solve your problem...
for an audio triggered transission, you will have to edit one yourself. this is totally simple: just create an 320x240, 8bit BMP file (like the ones u will find in the resolume/transissions folder). for a coldcut transission u will need a bmp filled with one color only, for example black. a black bmp will cut, when the audio pegel reaches its maximum amount (100). a white one will cut at minimum amount (1). because of the still very idontknowhowtocallit audio analysis (it kind of suxx), i would recommend to choose grey as a fillcolor for your bmp-files (eg. RGB 666666 or RGB 999999). those transissions will cut at amounts about 40 to 60, which are easier to adjust/control, if u know what i'm saying...
however, u will notice that the cuts are set very randomly, even with plain 4/4beat techno tracks. so for a more precise or regular cut, just check out the timeswitcher function (rightclick the layermixing method in the lowerleft corner, which reads LU) and adjust the switchingtime with the fader... althhough it is not audioresponsive, it is just straighter....
i really hope you understand what i am trying to explain. if not, i can send you the bmp-files, if you want... (how can i attach files to a post n the forums here?)
good luck,
trm