1) Don't waste your time making weapons. They aren't supported by the in-game importer, and Valve won't use them!

2) If you really want to anyway (which would be dumb), then you can figure out what bones you need by decompiling a spy weapon from the vpk and seeing what bones it uses. http://forums.steampowered.com/forums/showpost.php?p=18003290&postcount=2

Scroll down to the FAQ that deals with weapon making.

My dreams are like crushed :( Why do people still submit weapons though, If valve won't use them anymore? So I should stick with making misc or hat? Btw thank you for your reply :)

I'm not sure why they submit them anymore. Some users like SVDL who are pretty successful submit them in the slim chance that Valve might use them in bigger updates; however, if you're still trying to get your name out in the workshop, submitting weapons won't work.

Some people still make weapon skins for modding purposes, and then they later upload it to the workshop just for consistency. I had a few weapons uploaded to the workshop before the implementation of the new importer, but since then I haven't made any weapons since it would have been largely a waste of my time.

Stick to hats or misc items if you want a much better chance at getting an item shipped.

Thank you so much for telling me this, because I had a folder filled with weapons and I would have continued to make a whole lot of useless weapons that will never get submitted :)
Although it's rather disappointing to know the truth, but the truth hurts :D.

Valve did mention that they would eventually get the importer to approve weapons, so we can always wait... It's just a matter of time. And frankly, TF2 doesn't seem to be at the top of Valve's priorities right now (especially with the new steam universe thing and Dota 2).

Well I guess college saving will have to wait XD (It'll pay off in long term though :D), I'll get my submission ready in the mean time until the next new importer :) Maybe I'll give Dota 2 a try, but I doubt it though XD. Thanks for all the info though, I really appreciate all the advise that you have given me ;) Maybe with a little hard work, I'll make myself a name as big as yours someday :D