98se Startup problem after instal usb card reader

I just installed a new usb multi card reader on my 98se drive ( have a
dual boot 98se-fat32/xp pro-ntsc, on separate hdd's).

Installed as 'unknown device' as could not install drivers & I could
not find the right ones on the disk that came with the reader, so I
manually tried to install anything that looked appropriate.

Ended up installing something called 'Generic - USB Card Reader' in
Program Files- which only put a 'disk monitor' icon in the bottom right
taskbar. Hmmmmm! - didn't look right so I uninstalled it..... Reboot

Now here is the Problem... on reboot when I select '98se' from the dual
boot option... Windows 98se starts to load up but then goes to a "
Windows Set up Wizard" asks for a name then asks for the product key
to install Windows from the start!!!.... I cancel at this point.

Tried to boot into 'Safe mode' but get the same thing?????... I can
boot into the XP pro drive ok.
HELP!!!!!...... Have I lost everything on my 98se drive? (ps. I can
still read all my 98se files from the xp drive- just can't boot into
it....tried all the 'safe mode' options but end up at the 'Setup
Wizard")