VPN connection question

[Patton Echols <p echols comcast net>]

I am attempting to set up VPN ability from my laptop to my office network. 

Laptop : Runs Ubuntu Feisty, Network Manager 0.6.4 with 
network-manager-openvpn, network-manager-pptp and network-manager-vpnc 
plugins installed.

Office Network: Serverless peer network behind a Linksys BEFSX41 Router 
(firmware version 1.52.15)

The router has settings to enable IPSec, PPPoE and PPTP.  All are enabled. 
Encryption is set to 3DES and Authentication is MD5
Key Management is set to "Auto (IKE)", PFS enabled and there is a 
Pre-Shared Key set.

In trying to set up a VPN in Network Manager, I don't see options that 
look like any of these, or any of the other options. 

Does anyone know what settings I should feed to which plugin?
Anyone know if there is another plugin I need - and where to get it?
Anyone have experience with this router and able to get it to work?

Thanks for all thoughts.


BTW, if your suggestion is to ask the office network admin, I am the 
owner, laborer, chief cook and bottle-washer . . .and all that we have 
for an admin.

Thanks again,

Patton