I've asked this same question in the pfsense forums but figured I might try here as well.
Here is the post: http://forum.pfsense.org/index.php/topic,62352.msg341224.html#msg341224
I have pfsense 2.03 running with OpenVPN enabled and working without problems. However, I found we no longer have access to connect to our partner sites via VPN (out of my control). I have tried the suggestion made by jimp on pfsense (setting up outbound NAT rules with alias VIP's) to no avail.
I am hoping one of you Spiceheads might have encountered the same issue and might have some ideas? I still have my old DSL network available for now but once it's gone I'm dead in the water with this assuming I stay with Pfsense.