How to Remove Old Memberships from a user?

Hello Everyone:

I'm new to SharePoint and have been experimenting with SharePoint 2007 (I know... ancient). I've kind of gotten myself into quite the unusual bind and need some help getting out.

The Back story:

I began experimenting with SharePoint 2007 about a week or two ago and had several failed deployments. After each failed attempt at doing one thing or another, I would delete the site collections, sites, and SSPs associated with it along with the SQL Server databases. Now that I've finally gotten it working (hopefully) the failed attempts are showing up in one of my user's "My Links" and "my memberships" on their My Site. How in SharePoint Server 2007 do I go about cleaning up these things?

Also I seem to have created 2 sites called "Policies & Procedures" and thus need to de-link the test version from the current version.

to see what I'm referencing, see the screenshots

If possible, I'd prefer to not have to start over or delete the AD user since I'm also using CRM. Any thoughts?

Old sites in memberships on a user's profile in SharePoint server 2007