If you have Sup2, sh vtp domain shows the config-revision. Here is a sample output
Console> (enable) sh vtp domain
Domain Name Domain Index VTP Version Local Mode Password
-------------------------------- ------------ ----------- ----------- ----------
Cisco 1 2 Server-
Vlan-count Max-vlan-storage Config Revision Notifications
---------- ---------------- --------------- -------------
2 1023 0 disabled
Last Updater V2 Mode Pruning PruneEligible on Vlans
--------------- -------- -------- -------------------------
x.x.x.x disabled disabled 2-1000
If you have a Sup3, sh vtp status
SwitchB#sh vtp status
VTP Version : 2
Configuration Revision : 2