Where Am I Going Wrong?

[Vulch]

Your computer repair site is currently using the Cardinal theme that comes with GetSimple. The idea of any CMS is that the basic page layout is held in one place and the content of pages in another, the two are then combined to present the page to the viewer. This means changing the design of the site can be as simple as selecting a different theme, you could change your site to use Default_Simple instead of Cardinal just by selecting that in the Themes tab of the admin pages.

The TLC layout will need some work to change it into a useable theme, but that will apply no matter what CMS you go for.

Anthony