Attempting to determine liner type

[justin1989]

I'm looking to replace my liner this year, as there are quite a few holes and my patching attempts are failing due to the amount of wrinkles in the liner (large wrinkles, I purchase the home this year). However I believe the liner is hung / beaded, I can't determine if I can use a beaded liner in the track that exists. The liner I have the thicker vinyl at the top is rounded, however this may simply be due to it forming to how it's hung.

Thoughts?

http://imgur.com/a/DxIiq