Work in progress
We do not generally let people upload their own theme on our systems, mainly for security reasons.
Please, have a look at the existing themes first. You can find them under Administer » Site building » Themes.
Remember that once you upgrade, you get access to even more themes.
Note that if you have a simple enough theme then we may upload it in your website for you1. The theme must be a Drupal 6.x compatible theme. There is a one time charge of $20. So... Once you upgraded you site to Snap! Blogger Lite, Snap! Blogger Pro or Snap! Business, if you still cannot find the theme you want, contact us.