Do you really think the driver is different when you use Ubuntu instead of Debian packageing option? Just a little hint: the result will be the SAME. As the package names are different you just have to completely uninstall the other packages before. Ubuntu packageing needs dkms which is not in Debian by default. No big deal, because that package is for all archs and can be easyly fetched from Ubuntu:

http://packages.ubuntu.com/jaunty/all/dkms/download