Want to us Ad Sharing Plug-in in WP

I downloaded the Ad Sharing plug-in (the latest version as of today, v. 1.1) in the hopes that i can use it on a WordPress (as opposed to WPMU) blog where i plan to have multiple authors. But it appears Ad Sharing is a WPMU-only plug-in.

Is there anything I can change in the code to make it run in WordPress (version 2.9.2)? Please note I can handle a little bit of changing around PHP code but I am by no means a coder or very technically inclined. Thanks.