Hi George!
If you would like to create a profile page for your members, I can suggest taking a look at this tutorial her e to find out how you can accomplish this by creating your own Members Area. The tutorial will break down how to get the users id (With the Wix-users API ). To find out how to create member profile pages, click here.
The links provided are a good place to start to see how you can begin to create your site.
Hope this helps and have fun!
Edward | Corvid