I understand that if i root my phone i will not be able to find slingplayer in the market. But if I download slingplayer before i root will it keep working after i root my phone.
You are not asking a question that can be adressed here. Better off to find a place that allows you to talk about non "official" setups.
But I would suggest you just give it a try. If it doesn't work you can always revert back.
Sorry I took a day for this, but I was busy. Anyways,
This gets full flash and full permissions, as long as you've properly rooted and unlocked your NAND.