Hello Gnutellers

Just wondering, I have a signature picture, which basically tells people about a place they can find some of my material. But i had to put a direct link to it NEXT to the picture, as I have no idea how to make a website button, you know, so you can just click on the picture and it takes you to the place you want to go.
Is this just available to users with special permissions, or...?
Anyone know how to...?

Thanks a bunch.