A recent RNS confirmed Wayne Sharpe's holding at >54%.
And from today's (20/10/2005) Evening Standard (page 28, Business News, In Brief):
"Bartercard chairman ousted as directors stage a coup
Bartercard, the credit company that allows businesses to trade goods and services rather than pay cash, has booted founder, chairman and 54.6% shareholder Wayne Sharpe off the board. Four Bartercard directors prevented him and another major shareholder voting their holdings at the annual meeting to re-elect him as chairman."