My reply(s) were in relation to the question about Anti-Skid inop. and how you apply the weight and V speed corrections.
Otherwise I believe that the original question has been answered, in that you take the lowest weight from either the Climb limit column, or the Obstacle/Field limited column. (NB from the Obstacle/Field limited column the actual maximum weight may be limited by field, brake energy, tire speed limits or Vmcg. The exact code will be annoted and can be checked against the codes at the bottom of the runway analysis page)
I should also add that you must consider your max. structural weight, and that QNH, bleed, anti-ice usage, and any MEL/CDL items will also need to be taken into account too.
Hope that helps