PIX 515E and static NAT

Hi all:

I am using a pix 515E to do static NAT so that some of our clients can
connect to an outside VPN connection that requires 1-1 NAT. So I have
assigned static IP's to those users and then natted their addresses to
a public IP's which allows them to connect to the VPN. The problem is
that these users have problems accessing our internal LAN when I give
them the static addresses. At firs ..
Telecom, Cabling and VoIP continues...