I always use the advanced listing tool, and generally list new items by selecting sell similar. I just clicked on "sell an item" on my selling page and it took me to the quick lister! There were 2 links up the top right of that page. One to switch to the advanced listing tool, the other was a help link. I didn't go any further into it to see whether the link was still there on the actual page you create the listing on.

That said, if I turn around and do the same thing next week, the link is just as likely not to be there.