Is there a way to run pre-installed games on a windows partition using either cedega or wine? Thank you in advance for your insight.

Cedega and Wine are alike. Actually I'd consider Cedega as "Wine + 3d-rendering-boost"..

I haven't used Cedega myself too much because of it's fee (and my disinterest of compiling cvs version), but Wine should be able to run games installed on your Windows (FAT) partition (I've run Hitman: Codename 47 back in the days). It might need some configuring, but should work as long as you use FAT-partitions. NTFS partitions (i.e. Windows XP's) won't do as far as I know, since many games often write some files on harddisk during the play, and Linux' NTFS write support is very poor.

EDIT: but if you could somehow tweak Wine to use some Linux local directory as the "working directory", it might work. It's just that I often see these games creating savegame files, config stuff etc. on their intsallation folder, so if that resides on a NTFS partition, you might be out of luck..

Hmm.. I can't get my wine to work with my pre-installed games on a windows partition. I get such error:

err:advpack:create_tmp_ini_file Unable to create temp ini file . . . .

Anyway, I think this is not the right place to report this. Better check out the winehq support/forums.

So you're doing that on a FAT-filesystem partition, right? Not NTFS? Did you try running Wine as root, does it differ from running it as a regular user? If you've mounted the appropriate filesystem and have read-only permissions for your user (or the one Wine is run as), you might have problems like that...

ohh!! I almost forgot that. I am running as regular user, but I think wine creates its own configuration files ont the current users' folder. Would that require root access? Unless Wine needs to write something on the FAT partition I think.