Setting up VPN Server behind NAT (router) and firewall

[patch1117197]

Hello all...
I have a PC which contains a database on it... I would like a person to be able to connect to my network and use this database... how would I go about setting this up? Is VPN a good idea? My connection looks like this... NAT'ed Addresses-->Cisco 806--->Firewall--->ISP. Can i set this PC up just to accept vpn connections? how do I do this? Please Help!
Thanks

 

[JMCColorado]

What kind of firewall do you have?

 

[patch1117197]

I have a Sonicwall soho firewall.... I already opened up the PPTP ports on it.

 

[Guest_imported]

I am in same boat with same Router! Qwest is the ISP. We have IP address that is NAT'd with the 806 but that iP address is probably NAT'd @ Qwest to begin with. This is a tough one..........let me know if ya hear anything helpful.

joshua@highcyde.com