Replying to Icons

I noticed alot of you have those icons from badassbuddy.com and i tried to get one by right clicking on the icon and getting the properties, and getting the URL of the icon (which is gif) but when i put it into NS it doesnt accept it. It says it has to be gif format, but it is. How do you do it?
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-Caleb
(SMS SESSION 2)
''...ride away clean and smiling, and taunt the rail by waving around your middle finger at it. (Note: if you have mittens on then it's important to take them off before preforming this procedure.'' -Boyd Easley (on rail sliding)

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