Thanks to both of you, and sorry for my delayed response.
Actually, I registered myself on the Aruba support site to access the Downloads section - thanks to zjennings!
But as the registration process takes some time, and we could not wait on this, we took the help of our vendor to do this for us. We sent them our office Floor Plan, and they returned to us the Heat Map with the IAPs positions. And the Access Points are working great since then!
And thanks so much for the links to the other site - I'll go through them!
Thanks & Regards
Yagyesh