hi this is my first post on mikrotik forum
i have major problem on connecting mikrotik to the internet
my vmware version is 7
my mikrotik os version is 3.20
and my Os is Cent OS 5.4 with 4 ip address
i set VMware Network Configuration to Bridge Mode
and i test Nat Mode
but none of them could not connect to the internet
any help?

You need to look on the VMWare (documentation, forum, mailing lists, etc.), as the problem is related to network configuration of VMware and not to the MikroTik RouterOS.