If you are asking about one of the directories that glrsales offers, follow the instructions from the acknowledgment email, ie: login on the members page.At the bottom there is a green box which will say something like this:
Your Entries in our Directories
You have 2 websites in our directories. You can View, Edit or Delete them.
Click on the link to "View, Edit or Delete"
The click the button for "Edit or Delete" and you can then change any of the information other than the URL (submit a new listing to change your URL).
After your changes are submitted they will be reviewed and then your listing updated.