Importing from another site creating problems with themes

Hi,

I'm new to WPMU and have finally gone live with my first main site. My first user blog has now created a problem for me. I created it and imported the content from the main blog into it. The theme I'm using in the main blog is a 3 column blog. The theme that I imported the content into is a 2 column with the sidebar on the left side. Now what happens is I'm getting a two column theme once imported but it is on the right side instead of the left. ??? I have no idea how to change that. It was fine before the info was imported into it.

Can someone help? Any ideas how to change it so it is right?

Thanks,

Sleenie