…the online Music Store part, I mean. I’ve been getting a “The store may be busy” message for the last few days.
Is this some sort of post-Christmas rush jamming the servers, or is it just me?
50 Quatloos says “just me.” 
It’s working for me…sorry.
Mine seems to work also…
I did have previous problems with iTunes for windows (it would fail to read/display CD’s when inserted into drive)…
I read where this problem, along with a handful of other problems, could be sovled by going to add/remove programs, click on iTunes, then choose REPAIR. After repair, iTunes was back to “normal” for me.