please find the network setup of my company

ISP modem - 192.168.1.1
ordinary 24 port switch
2003 Domain Controller - 192.168.1.2 - ( domain name is abc.local )
12 XP workstations connected t0 switch(under the domain) - 192.168.1.101 -
192.168.1.200
2 server 2008 workstations(not a domain controller).
these are still connected to abc.local . Ip addresses are 192.168.1.11 -
192.168.1.12
All the PCs have only one network adapter and static IP . Not assigned by DHCP

Clients are in a completely different country and different network
Till now not conneted even thro Internet.

clients in a different country wants access to one of the 2008 servers thro
VPN
Can we use the Routing and Remote access/VPN funtionality present in Server
2008 to establish connetion ?

Dont want to use any kind of Remote desktop sharing utility
I have also tried Logmein and Teamviewer products. They are not an option
for me now
any help would be gretely appreciated.

We have a static IP address got from the ISP at our disposal.