I've tried installing both the latest-build dmg set and using svn as described on the wiki (in latest Leopard).
The nearest I can get to something working is the object inspector, source editor and top panels showing. However apart from the source editor they are not selectable and all the windows - including the source editor - are behind all other windows. The menu is also unchanged - I see only the X11 menu items. Also the fonts in the source editor seem to be wrong - bits of text missing, and if you select text the font size changes.
Any suggestions?
Many thanks.