1994 Firebird Door Problem

[ChrisPA]

I have my 94 firebird I just bought. The metal strip that goes from the top of the door to the window is unclipped and can come up, it lifts up when I close the door and I have to push it back down again to make it go back in, it does not seem to clip. Anyone know how much it would cost or how I can fix this?
I dont have a picture of it but I have circled the area on this picture I found
http://i62.tinypic.com/2mwsex5.jpg

 

[melsg5]

with the door fully down you dont see anything missing or bent comparing the drivers and passenger side? I believe it is called the outer glass channel weatherstrip. The vendors such as Classic Industries carry replacements.