[Mark Farnsworth]"I'd like to upgrade from 8.2.2 to Media 100 i Version 8.2.3a. However, I have projects I'm currently working with. Will I risk losing anything if I perform this "full install"?"
While I never would recommend doing any upgrade with a heavy deadline approaching the V8.2.2 to V8.2.3a update should be no problem at all. If you have some spare time to test it before working with clients on it there is not much that can go wrong. And downgrading to V8.2.2 in case anything is wrong is easy also.