So you want to get a new theme for your web site. The blue theme that comes default with Drupal is called Garland. It is a GREAT theme. very well designed. Although, since it is the default theme, it gets very redundant when a lot of web sites use the default theme.

The following are your options for getting a theme for your Drupal-based web site:

Using a free pre-designed default Drupal theme

We though it would be a good idea to add a tip jar to our Drupal 6 based web site.
I looked into the modules on drupal.org to do it and found a module called: lm_paypal
Downloaded the version for our site at this time, which is version 6.x
Put the module into /sites/all/modules
Enabled the lm_paypal module and configured it with our paypal email address