I didn't see an "open" link either on ab's site, have you tried connected components? I know it is free. It's the replacement for drive executive. I don't think it works with legacy drives though. Worth a look.
I found it finally on my RSlogix 5000 disk but had to enter a serial number to install. Found it in knowledgebase. I download the CCW and it is neat but wasn't what I needed. I need to save drive parameters for my customer who already have files from pur other machines in drive executive format.