I am having the same problem. I have to attache two sleeves, a back, and two fronts together. Each piece has a long tail that I was suppose to leave. What am I supposed to do with this long tail?

I tried joining them together and the yarn seems to stretched out, so I took it out. When i took it out, I ended up unraving some of the other stitches of the sweater pieces. I am at the point of frustration now that I want to throw the entire thing in the garbage. Does anyone ahve any suggestions that will make it easier for me to join the pieces together. :?