One thing that might help in knowing is that roses will ONLY bloom at their highest point.  Some climbers are so vigorus that they need to be tricked because each cane grows so straight and tall that is takes a lot MORE energy for the nutrients to reach the top.  Next season you might want to try (if you have a structure to attach to) weaving your rose canes from side to side (bending ever so slightly at about a 45 degree angle with each turn) up whatever structure you are climbing on, attaching loosely with twine or light fishing line.  By doing this the rose will want to produce a new sprout of leaves with a new cane (usually at each turn) which will then grow straight upward hence tricking the rose in creating more high points.  Providing that all the appropriate nutrients are given for said rose you should start seeing blooms next year.

In the spring I also pick a main cane that is largest and cut back at lease 1 1/2 - 2 feet from the ground.  This cut cane will produce a smaller cane allowing more energy to flow into the remaining canes and also allowing you to train the new small cane. 

Hope this helps,

William - Jackson & Perkins Customer Service