Sounds like you'll have 2 tubes, and a straight piece for the body. They're connected like this - oUo at the underam. There should be some underarm sts bound off or onholders on all 3 pieces. With a circular needle, knit across the front sts, then knit the sts of the first sleeve from the holder. Then knit the back sts, and the 2nd sleeve sts. I think there may be some posts explaining it in this thread, with some pictures http://www.knittinghelp.com/forum/sh...ad.php?t=76297
Even though the item is a pullover, the idea is the same' it's a long thread, you might start in the middle of it. It's going to look really weird for a round or two, then when you start decreasing for the yok, it begins to look like a sweater.