It started around the 13th of Semp. when my bluetooth started acting up. I found out when i was trying to turn it on it wouldn't come on i went to the settings and tried there it still didn't work but when i get to diffrent place i tried it came on but later that day it was off... Now it wont even turn on and i need it to transfer some stuff through it... (this is with new software kinda like the 8100)

You're going to need to provide a little more info....I have no idea what you're talking about.

Like if i wanted to send a file to my buddy I can't get my bluetooth to do anything.. Like if i try to sync it won't work Or if i want to get a file off of the internet (computer) it won't send it.

First you need to install OS 4.2 on your 8700c in order to Bluetooth files to/from it. However, there isn't much room on the 8700c for files so really you aren't going to gain much. However, if you have OS 4.2 you can do more bluetooth transfer.

I already have that after a while it messed up with that software. Can't I just replace it with Desktop Manager on Windows?