We are in the process of migrating a 2002 application to R2. The current 2002 setup uses a map with custome functionoids and an AIC. After going through the forums, MSDN articles and lot of googling, it seems like there is no easy way to migrate the AIC and map with custome functionoids. I tried the BizTalk Migration project. I was able to pick the receive function and port from the list, but the migration failed with "Object Reference not set to an instance of the Object" error when it started migrating the map. Did some search on this and couldn't find anything useful. So I assumed it has to do with the custome scripts in the map. So went ahead and removed all the vbScript routines from the map. Tried the migration wizard again, but had no luck.
Some one hlep me to suggest some ideas how to proceed further with out start from scratch.