UO Second Age

So I'm having a slight problem. I'm ready to sit down and start seriously playing this game again. I even have folks willing to help me get my start again and everything. But here's the thing, I had one account previously on this server, which I forgot the credentials for. And then I had my uncle AND my girlfriend make accounts on my machine from here as well. So when I came back, I made my new one, the one I intend to be my primary. However, I need access to another account in order to do it right, and I can't create anymore. Being as the other three are no longer in use, I was wondering if it would be possible to get an admin to go back and delete any other associated with my IP address besides my primary?

Help or advice would be awesome! Thanks.