If you are using the VMware Virtual Disk Manager included in GSX Server, VMware Server, Workstation, or ACE to expand the size of a virtual disk, and the virtual disk is partitioned, you will need to use a third-party utility to resize the expanded partitions. This utility would be run from inside the guest operating system.
Examples of third-party utilities include:
Partition Magic http://www.symantec.com/norton/products/overview.jsp?pcid=sp&pvid=pm80
System Rescue CD http://www.sysresccd.org/Main_Page
GParted LiveCD http://gparted.sourceforge.net/livecd.php
Partition Logic http://partitionlogic.org.uk
EASEUS Partition Manager http://www.partition-tool.com
Paragon Partition Manager http://www.partition-manager.com
Ranish Partition Manager http://www.ranish.com/part
7tools Partition Manager http://www.7tools.com/pm/index.htm
Windows DiskPart utility.