WEather strip replacement

Hi, My name is Lou, my wife and I live in Sistersville, WV where we purchased our home in 2010. The back side of our house has some old aluminum storm windows that the insulating stripping is gone. This weather stripping sits in a groove in the aluminum window frame. I'm able to put a 3/32 drill bit in the groove and it fits loosely side to side and sits slightly above the groove. Do you have something I can replace this with? the old insulating material its pretty well dry rotted. I've included a photo of the window.

I have the same type of aluminum storm windows as the person in the thread. My question is ... How do you install the weatherstrip? Do I need to take the frame apart, and if so how do you do that, it's not obvious. Or is there some other trick? It's a 3/16 wide base, and I can use either your 58-001 or 58-002. I currently have the 3/16 x 5/32. I can't seem to squeeze the pile into the channel because they are not totally open at one end. there are metal angles at the corners that appear to holding the frame together. Thanks for any help.