Pix Alias command help needed.

I have a strange situtation and am trying to resolve
it using the Pix Alias command although that may not
be the correct way.  

I have users that access an exteranlly hosted company
web site that is hosted by somebody else.  They can go
to the site and click an employee login link which
takes them to an internal citrix server.  Probablem is
that since the server is inside the network the Pix is
not letting the traffic though.  People on the outside
(traveling salesman or home users) can use the link,
but users behind the firewall on the interanl network
cannot.  

And yes I know this is not the most secure desgin so
don't hammer me on that.  If I can get approval I am
going to create a login sever in the pix DMZ but the
organziation I work for has a VERY tight IT budget.  

Any thought on how to resolve this?


                
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