I got accepted at UW-Madison (after an interview), but I applied in ceramics. I'm fairly certain each of their departments reviews and admits separately, so they are all on different timelines. I've heard of people getting accepted there as late as mid-March (in previous years) - so I wouldn't worry if you haven't heard for painting and printmaking yet. Good luck!
I also applied to the MFA Ceramics programs at CU Boulder and UMN, and also haven't heard anything from them.... I am dying to hear something (especially from UMN, as they say on their website: "finalists and alternate canidates will be notified of their status in early February."
!!!