Onkyo HT-S6100 w/ PS3

[Dreldan]

Ok the title says what i already currently own i don't need suggestions on what i should have bought lol.

What i need is someone to please help me set this up correctly. I currently can't get the back 2 speakers set up due to my apartment but i have 5 speakers set up. The front 3, and then the right and left side rear. I have my PS3 and my cable box all hoooked up with HDMI. When im playing a blu ray movie or a video game on my PS3 i can't seem to ever get any of the more advanced audio settings on the receiver all i can use is stereo, mono, direct, multi chan, or all chan. And as far as cable tv goes i can sometimes get VCR dolby and sometimes neo:6 music. Problem is i have no idea what is better i don't even know what neo:6 means.

With the ps3 i feel like i should be getting some better options as far as audio goes. No dolby? none of the red lights like DTS, i've never seen the TRUE hd light on. IS there some settings i need to change on the PS3 itself? I've been reading through this manual for ever and i've been messing with so many settings on everthing i can't figure this out.

Is it because im missing the 2 back speakers?

Also the receiver says it upscales to 1080i but it doesn't seem to do that? When playing normal dvd's on the ps3 it looks like crap and when watching regular channels that aren't in HD it sure doesn't look like its upscaling anything? Is there something im missing here?