Last week I decided to work on my window. Had same problem as you. It binded when going up and tilted forward. I took my laptop out to the VX and started doing what the forums said. So here is what worked for me:
First you don't need the new brackets. If both of your clips are attached to the window, they aren't the problem.
Take the door panel off (very easy - remove screw at top corner where tweeter is, remove two screws at door handle, and pry door panel around edges to release clips)
Put window all the way up.
Pull rubber off track (not all the way - just up to bottom of window)
Take the handle of an adjustable wrench or something that wide (I used a chissel) and put it in the track pulling back to widen track. Pull back so you don't accidently dent the door . Widen track a little all the way down (metal bends pretty easy)
Take a rag and spray silicone on it and use that to clean the inside of the rubber. After all clean spray the inside of the rubber with silicone.

NOW THIS IS WHERE I HAD TO CHANGE DIRECTIONS ON FORUM. The bracket at the bottom of the rail - instructions said to bend it towards front of car away from window. When I did that the window almost fell out. Window needs the rail to be close to avoid window tilting. I moved the bracket back (I could basically just pull it with my hand)
I put window down and put more silicone in the rubber piece between top of door and where window goes into door.
A few up and downs and it worked perfect.