Hello

I have a DIR-615-E3/E4 and have just updated the firmware to DD-WRT v24-sp2 (03/25/13) . On the other hand, I have a VPS in the USA with Squid3 installed on Debian. I have a laptop that cannot be altered in any way. The laptop connects to the router and then to the Internet using a private VPN. I need the IP address that the laptop sees to be the one in the USA; for that reason, I need to configure the router to forward the traffic to and from my USA VPS proxy squid3 box. is this possible? If so, how can I accomplish this? Thank you! Remember: I cannot change any configurations in the laptop... but I own the VPS, so I can install another proxy service if that is what is needed.
Details:
Router model D-Link DIR-615-E3/E4
Firmware: DD-WRT v24-sp2 (03/25/13)
VPS runs Debian 7.11
Squid3 v 3.1.20