Adapting Andreas' themes for Drupal : how to do it ?

Hi,

I like the theme Andreas02 so thanks to you i went on this designer's website and found some free themes i like even more :-) that is to say Andreas01 and Andreas09. Unfortunately, the zip files provided there are for "regular" websites and don't work on Drupal (i tried, i have Drupal 5)
I'm not very proficient in theming, but could you explain me (or refer to a tutorial) how to adapt a "normal" them from Andreas for Drupal ?
If i manage thanks to you, i promise i'll post il on drupal :-)

Another point, regarding Andreas02 : on the designer's demo site, the primary links are also shown on top of the image, and bigger than the ones on the right hand corner. I think it looks better on top of the image than in the corner, but in the Drupal theme i didn't find any way to configure this and find this other type of primary links. Any hints ?

Thanks a lot in advance.