in theory, you can uninstally the 4.84 and reinstall the 4.85 with FLMM.
however - it is advisable that you:
- uninstall 4.84 with FLMM
- uninstall freelancer and ALL its traces from the registry and your private folders
- TAKE DOWN YOUR ACCOUNT ID !!!
defrag the system
- reboot the system and make a 100% fresh installation form your original freelancer CD
- upload 4.85 into FLMM
- install 4.85 onto the fully fresh freelancer 1.0 version you just installed
- run the new disco mod - and setup the links for the server
- enter your old account ID
that is the best way to do it.... every time you "just use FLMM" - things can be left behind. - so - i d advice ( once the public beta starts ) to make a fully fresh installation.