Rampart/C is now fully inter-operable with Rampart/Java and IBM's latest WSDL2 implementation. This has been proven in the WS-Policy interop held in Ottawa, Canada(May 23rd-25th).
They have published results here. (See Table 11, 12, 13, 14).
Thanks Manjula and Chinthaka for making this a success. :).
Hmm... I feel I should submit these results to folks who rejected Manjula's visa application on behalf of Canadian embassy ;) in Sri Lanka.