Fif-...eighteen? I sense the almighty banhammer hovering above your head. Whether it falls or not is another matter. Welcome for the time being.
For your sig, upload to
sadpanda.us and copy the link that starts with [img}. Next go to Edit Profile in your profile page and paste it in the gap that would normally house your signature. Press Submit and you're done.
Font color...
[co.lor=#FF00FF] your text here[co.lor], but without the periods.