An Adobe forum member recently tried running the effects script from AA1.5 on AA2.0, and discovered that it wouldn't work. A little investigation revealed that this wasn't particularly surprising - the effects workover effectively scuppered both of the interesting parts of it, i.e. the sections that used echo and reverb.
Anyway, after a little more trouble than I thought I'd have, I've fixed the script so that it gives effectively the same results on AA2.0. If you want to, you can download it from
here. Just stick it in the AA2.0 scripts folder located where your installed files are, and off you go.