Cagmin is my gamertag.
Thanks for helping! I tried posting on the GfWL tech support forum and got no response. I know I've never encountered anything like it before, it just stinks since they made you guys (and the other new ones) not allow offline achievements. It seriously took this long (1.5 months since my last post) before I was able to sit down and play this single player game
online, so it was pretty frustrating to run into this snag. I know they're just silly achievements, but as a father of two little ones those are usually all I have time for - added to the fact that I play these games on my laptop away from home. I really wish they'd reconsider the need to be online, as they specifically created offline achievements for a reason.
Anyway, sorry for going on about it, and thanks for your help.