IDK on the cruise control but check your brake light switch (do your brake lights work?). That's not an uncommon failure item, it's inexpensive, and it causes all sorts of havoc actually. Also look for any blown fuses.
On the transmission, go here:
http://www.rialtainfo.com/TheBaldy/vw/transmission.htm
That's for a Eurovan-based Rialta motorhome but it all applies to the Eurovan too.


