First of all, you need to have PC-Xware installed to be able to remotely start programs during SSH session via SecureCRT.

Next you go to Start>Programs>SecureCRT6.0 and open SecureCRT

Then select SSH2 for protocol, type in the hostname of server desired to connect to, and your username. Make sure settings look identical to the ones in the screen shot below, and click connect

Go to Options and select Session Options

Click on Remote/X11 and make sure Forward X11 packets is selected

Click ok, and re-connect. You should be set