I have used snappshot to get an image of Groupwise and E-Trust
I have done other applcations and they all seem to work fine, but my
question lies with the programs above.

Does anyone know where the relevant registry settings are so that I can
change things like the proxy server address (in E-Trust) or the mail
server address in Groupwise? So I can push the image out ready

I also have to push out some Citrix connections, what will be the best
way of doing this (as they will also have to be configured with the
proper server addresses)