I have not yet started the Sweater Sampler but it is one of the October projects of the Elizabeth Zimmerman's Almanac group on Yahoo. The group is organized by Kelley Petkun, owner of Knitpicks and many of the members are working on the sampler right now.
You can join the group, work on your sampler and ask as many questions as you like.
There's a link to join the group on Kelley's blog page here
where it says Elizabeth's Year Knitalong.
Hope you find some help there!