Ok, was messing trying to get optical
scroll mouse working. Installed driver to
do this. Pointer moves properly, but cant
click anything. ok, messed with keyboard
and somehow got to uninstalling driver so
ps2 mouse can work again. However
uninstall gave error before through I
guess. Now on reboot, cant use any mouse.
Can use keyboard to bring up scroll driver
file window but its sitting mostly below
screen. How can I use keyboard to make
window expand into full screen or move
little window up where I can read it using
just keyboard?

Boot from CD.
Run as live CD to replace the files.
Could try new live cd at bebits or use any bootable beos CD.
Might have to use safe video mode too.
At boot select CD as boot device.
Agree to eula
DON'T INSTALL rather ctrl-alt-del
on popup choose restart desktop.
mount old install
drag and drop files from cd to install.

Reboot.

Tried and got install cd to desktop. Couldnt change files. Two home files showing but they were identical.

Would a serial mouse bypass all this? The scroll driver readme said scroll driver replaced ps2 driver, but didnt say anything about serial mouse. I used to have couple, gave one away and cant find other to try it. If it wont work, I dont want to hassle tracking one of these down. Getting might rare.

Could do this just using keyboard if there was anyway to get windows to open where I could see them. Or move them there.

Depends on how the author wrote it. As a user add-on you could disable in startup. I would check other subdirectories for drivers. I just don't think that is where the drivers are. Otherwise just drag and drop the whole CD to the file system. Or do a new install.
I would think a scroll mouse is just the same as any other mouse but in beos you wish to have the wheel working. Sure some serial mouses work but as with all things there is a maybe factor.