Question : How do I setup a VPN site to site tunnel between a linksys VPN router and ISA server 2006?

I am trying to setup a VPN site to site tunnel between a linksys RV042 VPN router and ISA server 2006?  Detailed instructions would be welcome.

Answer : How do I setup a VPN site to site tunnel between a linksys VPN router and ISA server 2006?

There are a number of steps to this process, and it depends on what type of VPN you want.  Here are some links to a Microsoft knowledgebase articles that may be helpful:

http://support.microsoft.com/kb/837355/en-us
http://support.microsoft.com/kb/888711/en-us

The ISA server help files themselves will have some basic configuration information on a step-by-step basis.