editing signature

I've already created my profile, but l am wondering how l can insert a quote in the signature area? thanks

Just click on the MemCenter tab on top of this page and just insert your sig into the form...

thank you for that
second line goes here

where is the memcenter tab?
I'm not sure why I have such trouble figuring this out

On the top tool bar to your right of the recent posts bar and next to members, its blue

Thank you...
One of those times you can't see whats right in front of your eyes

One thing I havent figured is how to put an image under ones signature.
Have tried to link it put all I have seen in the hyper link text.
Still not sure what I am missing from reading the tutorials.
Any help.
thxs.