To delete: Go to your My Bump and then your profile. You probably put a code down in the siggy part. Just delete it. Although, I'm not sure if the Bump tickers work differently, but see if that works.
For a new one you can go to Lilypie or TickerFactory. Make a ticker, get the HTML code and paste it into your siggy under your profile.
Re: Ticker.. questions
To delete: Go to your My Bump and then your profile. You probably put a code down in the siggy part. Just delete it. Although, I'm not sure if the Bump tickers work differently, but see if that works.
For a new one you can go to Lilypie or TickerFactory. Make a ticker, get the HTML code and paste it into your siggy under your profile.
Good luck!