Quote from tradelink:
we have users trading futures and fx each day with IB.
please report your issue on users list or the issues tab, so someone can assist you. google tradelink project or tradelink.org
FX works fine, just futures have a problem.
Will report issues as suggested, thanks.
P.S. The issue is pretty much the same as one reported here in 2008
http://code.google.com/p/tradelink/issues/detail?id=61&can=1&q=tws futures