Yeah, it can be hard when things doesn't work out but I like to stay optimistic (or maybe stubborn would be a better term to use) so I usually keep at it if it doesn't work out until it does. 

I use a [url=http://sig.grumpybumpers.com/]sig rotator[/url]. All you have to do is make an account and add in the pictures you want. Once you do that just add the link given to your sig and you're good to go.