Mining instructions for VTC available here:

For network 1 with hashing power more than 300 MH/s
http://vtc1.gizmo-pool.eu:9171/static/ - scroll down to info  

and

For network 2 with hashing power less than 300 MH/s
http://vtc2.gizmo-pool.eu:9181/static/ - scroll down to info  

Happy mining