Unfortunately at this point the upgrading process involves manually modification of web.confing with assembly redirects. The reason for this is that RadEditor for MOSS wsp solution uses SharePoint API to write to the web.config file and there are certain limitations in this functionality. Also there is no way to be known exactly which versions of RadEditor for MOSS have been used previously.
All the best,
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items.