Change css on a Wordpress blog with Thesis framework

Hi,

I would like the css of my (new) site changed as described here:
http://catablog.illproductions.com/2012/02/multiple-column-tutorial/

The plugin will be installed and set, so all that's needed is the CSS to be changed, to that we get the following results:

- 2 Columns
- 5 rows
- additional results paginated (this should be a standard feature of the plugin)

If you have any questions, please let me know.

I would like this to start ASAP.

Thanks,

Otto