you need to go to some web site like magicalkingdoms.com they will have a link to create the count down ticker. follow the instructions there. Once done it will generate a few different types of html like code. You want to copy the entire code from the code that says it is generated for message boards. The code will probably start like this
[url=
Then after copying the code you need to come back here and edit your signature and paste that code into your signature.