I think a lot of people don't use GameSpy (including me). You should let us know where you've marked these hours so we can find them. :-)
We're also in the middle of this campaign:
http://www.subsim.com/radioroom/showthread.php?t=186525
We're a month and a half into it (but only on the third turn). It might not be too late to join, but there no promises. :-)