Issue with the watercolor theme

[Sekkira]

Continuing on from here, I reinstalled the system entirely after having some annoying issues with everything. I've got all programs up to date and SP2 installed fine without any issues to my use of the system bar one little nagging thing. The OS now doesn't recognise the watercolor theme (yes I'm quite fond of the one displayed in the 2003 to workstation guide >_>). Instead the window display will go blank as if there's no skin for the window at all.

Anyone else experienced this and/or have a solution to it?