Enable good display resolution on hosted OS

Hi, I have installed Red Hat Enterprise Linux that has VMware GSX Server 3. I don’t have any hardware at home to test the Windows Server 2003. The Virtual Machine will work well, but is there any difference from VMware Workstation with VMware Tools installed on Windows Server 2003. I am not getting good resolution and color with the virtual machine. What do I need to get a better display? My default login is in text format, can I enable graphical login? I have already tried VMware with X server session. I think I am missing something in the process and I have no idea what it is.
Windows Server 2003 supports VMware because I have already confirmed that. Please give me idea to enable good display on the hosted operating system. Please help me to get out of this problem. Thanks in advance for all the support.
