for all and everything related to sig tutorials, i'd go to SigTutorials.com - The best Signature Tutorials! they have awesome help there! also, take a look at the Graphics and Arts section, and then the global resources thread If you want content created by users here at ForgeHub, find the Tutorials thread, created by juggernaut448 and myself....good luck!
Moved to GFX Discussion, Edit: won't let me move the thread. Consult this thread. Also consider posting a sig request in the graphics forum if you would like somebody to make you a sig, but be nice.