First, determine what version you have. (See here if you need help on this.) Next, if necessary, perform the upgrades to version 2.08 by following the following links:
Next, if you are a UNIX or Linux user, following this link: If you are a Windows user, the best way to upgrade is with the automated upgrade engine. Follow this link to see if you qualify: If you don't qualify to use the upgrade engine, read the Windows section of: If you are a Macintosh user, there is regrettably no automatic way to perform the upgrade. Read the Macintosh comments at the above text-based upgrade links for some suggestions on how to proceed.