Just click on the quit smoking banner that you want, and it should take you to the website to set it up. Then copy the link for 'forums' that it makes for you, Go to your page on ECF, then click on "customize profile", and look over to the left, there should be an "Edit Signature" option, under SETTINGS & OPTIONS" (If not, you'll have to wait until they put that option on your page for you-usually after 15 posts or so),
Click on "Edit signature" and then *paste* the link you copied into the box.
Click at the bottom to "Save your Signature". That's it!
There's also one that you can download and keep on your desktop that's pretty cool,it's FREE,
I find it very encouraging, it keeps track of time you haven't smoked, how many cigs you haven't smoked, how much $$ you saved since you quit, and how much time you've added to your life from quitting smoking, and more, it has really helped me, you can download it here:
Xarka - QuitCounter Homepage