Joe, full details can be found at CT Tunings website (http://www.ct-tuning.co.uk)

The cost is £19.99 for the kit

It works great on my son's PC and supports a wide range of common PICs inc the more popular 18F series (like the 18F2550). It also programs chips that require special treatment of the vdd and vpp lines such as the 12F675.

The Kit takes about an hour to build (may be less if you're a fast builder).