if you got to step 8 ok and typed in /msg xbins !list and hit enter, a new box will open (you'll have to click the button for it to bring it up). In that box is red text detailing the username, password, site, and port number you need.
Open your FTP client (FlashFXP, SmartFTP, coreFTP...it doesn't matter) and create a new site/connection. input the details provided in the red text then hit connect. If all goes well see you'll a directory of folder option in xbins. Navigate to whereever you want download whatever you want, but don't get greedy (by that I mean download the individual files you're after, not whole folders that contain heaps of outdated versions as well as the one you're after).....otherwise you'll get banned

Once you've logged into xbins, that password is no longer valid. To get access again you'll need to repeat step 8 be re-issued a password and username (it'll be the same as last time, it just needs to be re-activated).