I can't actually assure that my answer will be right because I dont have itunes, or an ipod...but I'll try to help none the less.
Most programs have in import feature(or something similar...maybe a slightly different name) when you go to "File" up at the top. Also, "File might be called something different too...I don't know.
Find the folder that your files from BitComet were saved to and just drag and drop from the folder into Itunes. By saying this, I assume this isn't pirated material
I am closing this thread, if the thread creator can satisfy me by Private Message that the music in question is not subject to copyright restrictions, I'll gladly reopen the thread. Otherwise, review the forum rules linked by Jet.