On Sun, 14 Jan 2007 00:27:05 GMT, Olof Lagerkvist wrote:

Thanks for the comments - SWT clerk said there were no fares for boundary of
zones "inwards" to London in the ticket machine.

AIUI tickets are available *from* zone boundaries only, not *to* zone
boundaries, but that it does not matter whether the direction is towards
London or outwards.

It does matter - there don't exist any fares "inwards" from Boundary
Zones.