This is the variety I'm talking about.

http://davesgarden.com/pf/showimage/11365/

I just planted a small and beat-up example (picked it up on sale for a
buck). It already a few flowers blooming and seems to have taken well
to the site I selected -- full sun, sandy top soil, and at the top of a
retaining wall. Anyone have any tips or advice they'd like to share on
growing this vine?

Patrick