Can I jailbreak my IPhone 4?

I tried it earlier using red snow and it didn't work and someone told me in a forum that they patched jail breaking in the 1.6.3 iOS update? I was wondering if you still can do it and is there a way for me to downgrade my iOS and use an older version?

Bedspread with similar pattern?

Okay, so I really like the pattern on this phone case(not the writing) http://wanelo.com/p/4990505/hakuna-matata-iphone-4-4s-case-cover
and i was wondering if anyone knew where i can get it or a similar one as a bedspread/comforter

Iphone youtube app quality problems?

From the title you can tell what my problem is. It switches from high quality to low qualities from time to time and i don't know how to fix it

IPhone 4 having problems with calls?

For some reason l can only hear people on the other line when my headphones are in. And while l can hear them they can't hear me. Also when l don't have my headphones in all l can hear is a weird cracking static noise. Does anyone know why this happens? Everything else works fine, Music/Texting.

Basic minimal wall damaging shelf to put an iPad mini and an iPhone 4S on?

The way my room is laid I don't have any room for a small table of any size. I have a window sill but in the morning it's sometimes wet from condensation. I'm looking for a small shelf type deal I could put on the wall to hold the iPad mini and my iPhone. We can have small holes in the wall just not large nails and screws.

How to play music from my iPhone to my car?

I drive a 2003 Audi A6 and my car doesn't have like a cable input anywhere. I heard I had to plug something into the lighter and connect it to the headphone jack on my phone…

If I could have a list of the things I need and the steps I need to take that would be great!
Thanks

Added (1). Http://www.kenrockwell.com/audi/

This is how it looks like

What do they sell at Frank and Sons?

Is it like a swap meet with different types of booths? Or is it just strictly for anime merchandise? I was hoping to go there and look for a case for my iPhone. What types of things do they sell there?