There is no 100% working cracks. The only way I know is to use IND's mini virtual disc which works great... no problems at all
By the way, I want to convert the installation from CD to DVD (I have the 4CDs version). The conversion worked fine, but the v1.1 update does not install. I keeps asking for CD4 (it doesn't matter which update, CD version update or DVD version update)

Anyone knows how to fix this ? ... or I will be forced to burn the game in CDs instead of a DVD-R ?