Responce URI Masking/Hiding

My apologies for hijacking this thread, but I would greatly appreciate some help refining the iRule above:

when HTTP_REQUEST {  
  Check if requested URI is / and requested host is www.example.com       
 if {[HTTP::uri] eq "/" and [string tolower [HTTP::host]] eq "www.example.com"         
  Rewrite URI to /home/default.htm        HTTP::uri "/home/default.htm"     }    
  } 

I have implemented this and while it works ok, I would like to ammend it so that:

1) a visitor can receive any content under /home (ie /home/anydir and /home/anyotherdir/anysubdir) without the path becoming visible in the browser, and

2)further that the visitor not be allowed to reach www.example.com/anywhere_other_than_/home.

It seems like it should be easy enough to do, but nothing I have tried so far has worked.

Thanks much,

Gregg