Hmm, why paint? Paint is probably the worst application to make signatures in. Do you actually mean paint.net? I would suggest GIMP if you don't want to buy anything, but want to try making graphics.
Download:
http://downloads.sourceforge.net/gim...i686-setup.exe
Anyway, to make it appear as your signature, save your image. (preferably in .jpg, .png, .tiff, .gif) Then upload it to a site. IF you do not know of any good image uploaders, go here and upload it:
http://www.imageshack.us
Once it is uploaded, find the source URL for your image and place the source within image tags. This is what the image tags look like:
Once finished your image should appear on the screen. Hope this helps!
