[Setup] yet another Virtual Host Monster problem

[zoomo]

The behavior I want is:

1) to have virtual.com to take the user to the page at 
"actual.com/myplonesite" but display virtual.com in the browser's 
address bar

and

2) and then as we click deeper into the plone site's internal links, to 
have the address bar reflect the new location "appropriately" (i.e. 
clicking on the link "info" contained on the top page should cause 
"virtual.com/info" to appear in the address bar).

What happens when I browse to http://virtual.com, I am taken to the 
correct page, but the URL in the address bar switches to the 
"actual.com/myplonesite" string.

Is it possible to change this behavior so that the user never sees the 
"actual.com" domain name or "myplonesite" site name?

I'm wondering what the proper DNS-registry record might be.  For 
example, at GoDaddy, I've tried the a forward entry for both 
http://actual.com/ and http://actual.com/myplonesite, with various 
permutation adjustements in my Apache rewrite rules with no luck.  When 
I use my account at enom.com, I've tried using "URL Redirect".  Same 
results, no luck, i.e., the http://actual.com/myplonesite still appears 
in the address bar.

Regards,
John