Port Forward Source (senders) IP Address & Port to the forwarded port?

[vitesse]

Got a webserver which log the senders IP address but we have noticed that with pfSense and port forwarding the ISP assigned fixed IP address is being sent to the webserver instead of the senders IP Address.
Using 2.0-RELEASE (i386) with two nics (1 connected to the router in DMZ mode) and the other nic to the rest of the network including the webservers.

Have setup 2 port forwards from any source to Wan 80 & 443 and port forward them to the webserver. All working fine except just not getting the source IP address. Any ideas what I need to do to get this?

TIA