Hi Louisa,
I'm not familiar with Trellex Web, but I'll try to help.

Regarding your domain name, if YOU bought it and own it, you can use it anywhere you want. I checked the status, and the name is registered at www.register.com. It was created in 2003 and is due to be renewed January 26, 2007. Have you been the one paying the renewal fees for the name? Do you have a password that will allow you to access the details of your domain? That will tell you if you are the owner or not.

Regarding your site and your inability to update it, where is your site hosted - is that still at Lycos? Are you paying a monthly/annual hosting fee? If so, I would first contact them and see if they have some answers for you. They may be able to tell you how to download the site to another program, such as Front Page - where you'll be able to edit it to your heart's content.

If you can get a username and password for the domain, and for your hosting, and still can't figure it out, let me know. You can send me a private message and I'll see what I can do to help.

Good luck!
Kathy