Don't worry, Soulcrusher.. I'm 17 year old and got a cellphone that is just a cellphone.. All I need is to call someone on some rear occasion, or to answear a phonecall.. Nothing more.. And I got one MP3 player, but never use it!
About your problem of paying, well, I got a Macintosh computer, and I found a program called GIFfun. It is free and works excellent for simple tasks as animating a signature like that...
Here's one I found for PC.. You tried this? http://www.toggle.com/lv/group/view/kl34879/Microsoft_GIF_Animator.htm