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He asks for help Ravendust, to learn how use the program, this doesnt mean he wants a signature. Photoshop and Paintshop pro both have alot more features than just making signatures >.>
Anyway, your best bet on making *anything* is just reading several different tutorials of whatever you want to make (be it signatures, websites, or whatever) and try to develop your very own style, dont copy the whole tutorial, but change certain things and dont be afraid to experiment
A good site I know for alot of tutorials (and not tutorials alone for Paint Shop Pro, but for quite alot of other programs as well) is:
http://www.pixel2life.com/tutorials/Paint_Shop_Pro/All/
I hope it can help you a bit.