Well I have found the solution, and its easier than you think. Use the following steps to reset the signature for each of your email accounts:
# Browse to https://bis.na.blackberry.com/html?brand=vzw. Replace vzw with your own provider. In Jamaica, I test this link by replacing ‘vzw’ with ‘cwjamaica’ and I was able to successfully login to Lime’s (formally known as Cable and Wireless Jamaica) account. I’d imagine this would work for other providers as well.
# Login with the account information you typically log into Email Settings on the handheld.
# From here, signatures can be edited, email accounts can be added, removed, etc.
I must say thanks to Aaron Brazell for providing this useful bit of information.