Windows 7 - Many questions to finetune Media Center

I finally had sometime on hand to write these questions. I have multiply issues with my HTPC, that I want to lose if possible.

I have just reinstalled Windows 7, so I have none codecs except the default.

1. How can I get my surround reciever to decode the audio stream instead of the soundcard. It is connected through SPDIF? I do here sound, but somewhere back in my head, I have a voice saying, this is not optimal. As I recall, my receiver could show either Dolby Digital or DTS, when I played a DVD from my DVD-player, which also was connected through SPDIF. But now the receiver wouldn't.
2. Can I clear the "movielist" cache in either MCE and/or Mediabrowser? I have som movies which isn't detected and others which are. Bad thing is that it sometimes detect movies that isn't here, so I can't play it.
3. In my movie folder I have another folder called privat movies. Can I somehow get Mediabrowser and MCE to not detect this, as I want it elsewhere?
4. Can I setup different zoom levels for diffenrent channels automatic? I have both DVB-T free-to-air channels and one analog channel (satelite). The DVB-T channels have okay zoom level, both the analog doesn't. Which means that I have to change it manually before and after I watched the channel. Can I set this up, so MCE remember a prefered zoom level for at least the analog channel?
5. Can I get MCE automatically set subtitles for each channel? Some channels need subtitles, others don't and the channels that need subtitles doens't need the same. On one I get the current time i the top right corner, and it stays there.
6. Can I somehow get Mediabrowser to go directly into my movie folder instead of showing the "root" for it? I only use mediebrowser for movies, so it is a bit annoying, that I have to press enter before I can se my whole collection.
7. Can I somehow get MCE to understand not to go into sleep, if I start a game from inside MCE? I use "MCE Standby Tool". It is annoying playing a game, when the computer just go to sleep, because it hits the minutes with MCE in idle mode.

I know it is much to ask for, but I hope someone can help. If you just know the solution to one point, it would still be great.

Articles to read:
Windows 7 Media Center – “Out Of The Boxâ€� [Features] | Windows 7 | Windows Tools, Help & Guides
Windows 7 Media Center review -- Engadget HD
Edit Media Center TV Recordings with Windows Live Movie Maker - How-To Geek

I have just skimmed the articles, and some of them offers new functions that I haven't thought of, but does any of the articles address any of my specific problems?

Hi,

Why dont you just try a new media center remote that works on the voice recognition technolgy. It recognizes the commands and ignores the conservation going in the background. This is an amazing tool and gives you the relaxation in life.

I have the Logitech Harmony One remote. It also needs some fine-tuning, but is getting there. On the other hand, I don't like talking to my gagdets, it makes me feel like I'm insane...