Okay next problem

I have setup a page I want to use as a web portal for my users. Now I have customers for browsing the site and I have return customers that I'd like to be able to setup a portal for.

So far I have created a new page and linked a subdomain http://customer.xyzcompany.com
So when we setup new computers they will go to the portal page while my other customers only see the www.xyzcompany.com

I added a google search block to only be shown on the portal page node.

I don't have users that login to the site currently but if I setup user authentication for just the portal users is there a way they can keep the existing portal page and add there own RSS and links to it?

It has to change for each individual user though so my previous node page redirect isn't going to cut it... I need some insite on what I can do with this.