Hi again Trevor. In addition to putting your version in your signature (edit profile, enter version, enter help desk password, save), you should also be sure to search the forum thoroughly before posting, as many of the most common questions (like this one) have been answered a bunch of times.
The best way to edit text in your site is to use Webmaster Mode. You can read more about it in the manual:
http://www.x-cart.com/manuals.html
When in webmaster mode, you can edit text on the fly (such as the welcome text).