Hey, I had many of the typical 'issues' that go with the factory intstalled shower closure, so I went to Lowes and found that by using a tub hand assist bar that I could use one end attached (screwed) into the shower enclosure and attach the other end to the shower frame and be able to buy and use a regular shower curtain. I am able to change it out when I want a different look. I never leaks, gives me more room in the shower door opening to get into the shower and it's just much more functional.
Hope this helps
a friend of mine actually found a curtain rod that does the same thing