Hi, I think this plugin is very interesting. Have you considered releasing a try-at-your-own-risk version, compiled against the new 8.02 C::B release? I'm sure many people will have a look at it then.
Also, as you took the command line approach to SVN, I think it shouldn't be too difficult to add suport to CVS as well (maybe others too!), so this plugin could evolve to be a general interface to version systems for C::B, at least covering the very basic functions. What do you think?
Thanks for your work!