In reply to chalkyjim:
There isn't a useful one currently.
There was a pdf on BlocsPenwith, but the pdf was broken and I think the site was down anyway.
There's a few problems detailed in Boulder Britain' but some of the route names are wrong and won't correspond with what's on here.
The old Cheeswring and SE Cornwall guide has a basic topo, but good luck finding a copy.
New guide is due out any time now afaik.
Your. Est bet is actually to work from the UKC logbooks page. The order left to right for the lower area and summit area are pretty much correct. The routes are found between the two areas on the obvious larger wall.
Some of the Cave area and the outlying boulders might be a bit tricky to navigate from UKC page, but you should be able to work it out in the end.