Rated 2 out of 5 stars
I put this same request in the MozillaZine forums: please bring TCO forward so it's compatible with finished versions of SeaMonkey 2. I doubt continually doing these install.rdf edits will keep working. SM2.06 is the current update, and I have a strong feeling that some "good idea at the time" code from the betas has been abandoned or cut out. Otherwise I'd try an edit.