>Hopefully there are some people out there that use Visual SourceSafe. If so...we have a former employee that is no longer with the company but still has some code checked out of SourceSafe. Do you know if there is a way to check this code in? maybe using the Admin account?

Exactly! Log in VSS using the Admin account, and you can do whatever you want: check back in or undo checkout even if it's not you who checked out.