Problem to see Gain in HFSS v10?

Hi,
I am facing some problem to see gain.
Can anyone help me on this matter, pls...it will very much helpful for me!
How to see gain of an microstrip patch antenna simulated in HFSS v10?
Basically I am confused about the phi & theta values in the sweeps tab, and the function under the Y tab...
I've just started with HFSS :)

Regards

Can you create a far-field plot as a 3D Polar plot?
Select all phi & theta values (this should be the standard for far-field plots) and in the Y tab select GainTotal.

Thanks :)
But I need to see it in rectangular plot not in 3D or polar plot.
Pls help....

Create a rectangular plot with far fields. Then select the desired sweep for the x-axis, and one theta and phi angle (otherwise you get many plots for each angle combination). And for the y values select the GainTotal (Gain at the specified angel) or for the maximum gain select under antenna parameters PeakGain.

hi.Do this steps:
1.in project manager window,right click in radiation>insert far field set up>infinite sphere
2.HFSS>result>create far field report>radiation pattern>(category=gain & function=dB & select sweep & select phi ,almost phi=0 for E-plane & phi=90 for H-plane)

please do i get this HFSS software. I need it for a particular design I want to do, but do not know where to download it. For free...