windows - Setting VPN to go through certain IPs and not others

I'm a scientific programmer with a loose grasp of what goes on under the hood in my small home network so bear with me whilst I try and explain using the correct words if possible.

My home network of five PCs (Windows 7, Vista, 2003, 2 x XP) uses the 192.168.0.0 range of IP addresses. My ADSL router is 192.168.0.1 and is set to do DHCP and all that good stuff. So far, so good. Most importantly I can connect to my local web server on 192.168.0.42.

I frequently have to connect up to a client's VPN using Checkpoint SecureClient. When I do so I'm given a 10.something IP address on the 'virtual' network card.

If I'm connected to the VPN I can no longer connect to my 192.168.0.42 web server.

How can I tell my PCs to only go via the VPN for anything beginning 10.* and to stay 'local' for everything else?

(below added following Chris Thorpe's answer)

BTW I don't see the VPN connection under Control Panel. I just see my physical NIC. Here's what I see running ipconfig, if that helps:

Ethernet adapter Local Area Connection* 6:

   Connection-specific DNS Suffix  . :  
   IPv4 Address. . . . . . . . . . . : 10.14.2.130
   Subnet Mask . . . . . . . . . . . : 255.255.255.128
   Default Gateway . . . . . . . . . :

Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . :
   IPv4 Address. . . . . . . . . . . : 192.168.0.101
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.0.1

(another edit following gravyface's response)

A route print gives 50+ lines of routing info. Here's some lines if that helps...

===========================================================================
Interface List
 11 ...54 ec 6d 95 66 05 ...... Check Point Virtual Network Adapter For SecureClient

  8 ...00 19 d1 6a 79 cb ...... Intel(R) 82566DC Gigabit Network Connection

  1 ........................... Software Loopback Interface 1

===========================================================================

IPv4 Route Table
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
          0.0.0.0          0.0.0.0      192.168.0.1    192.168.0.101     10
         10.0.2.0    255.255.255.0      10.14.2.129      10.14.2.130      1
         10.1.0.0      255.255.0.0      10.14.2.129      10.14.2.130      1
         10.2.0.0      255.254.0.0      10.14.2.129      10.14.2.130      1
         10.4.0.0      255.255.0.0      10.14.2.129      10.14.2.130      1




      192.168.0.0    255.255.255.0         On-link     192.168.0.101    266
      192.168.0.0    255.255.255.0      10.14.2.129      10.14.2.130      1
    192.168.0.101  255.255.255.255         On-link     192.168.0.101    266
    192.168.0.101  255.255.255.255      10.14.2.129      10.14.2.130      1
    192.168.0.255  255.255.255.255         On-link     192.168.0.101    266
    192.168.0.255  255.255.255.255      10.14.2.129      10.14.2.130      1
      192.168.4.0    255.255.255.0      10.14.2.129      10.14.2.130      1
     192.168.16.0    255.255.255.0      10.14.2.129      10.14.2.130      1
     192.168.64.0    255.255.255.0      10.14.2.129      10.14.2.130      1
     192.168.67.0    255.255.255.0      10.14.2.129      10.14.2.130      1
    192.168.120.0    255.255.255.0      10.14.2.129      10.14.2.130      1
    192.168.125.0    255.255.255.0      10.14.2.129      10.14.2.130      1
    192.168.140.0    255.255.255.0      10.14.2.129      10.14.2.130      1
    192.168.150.0    255.255.255.0      10.14.2.129      10.14.2.130      1
    192.168.250.3  255.255.255.255      10.14.2.129      10.14.2.130      1
    192.168.250.8  255.255.255.254      10.14.2.129      10.14.2.130      1
    192.168.253.1  255.255.255.255      10.14.2.129      10.14.2.130      1
    192.168.253.2  255.255.255.255      10.14.2.129      10.14.2.130      1
    192.168.254.3  255.255.255.255      10.14.2.129      10.14.2.130      1
    192.168.254.8  255.255.255.254      10.14.2.129      10.14.2.130      1
   192.168.254.10  255.255.255.255      10.14.2.129      10.14.2.130      1
    192.168.255.1  255.255.255.255      10.14.2.129      10.14.2.130      1
    192.168.255.2  255.255.255.255      10.14.2.129      10.14.2.130      1



  255.255.255.255  255.255.255.255         On-link         127.0.0.1    306
  255.255.255.255  255.255.255.255         On-link       10.14.2.130    256
  255.255.255.255  255.255.255.255         On-link     192.168.0.101    266
===========================================================================
Persistent Routes:
  None

IPv6 Route Table
===========================================================================
Active Routes:
 If Metric Network Destination      Gateway
  1    306 ::1/128                  On-link
  1    306 ff00::/8                 On-link
===========================================================================
Persistent Routes:
  None