If you have already your rotor positions stored then you don't need the plugin at all (which does not work well with vdr 1.7.x, when you get it to work it turns vdr into a rather unstable program) the rotor plugin needs re-writing in my opinion.

Just setup your diseqc.conf like this:

S19.2E 11700 V 9750 t v W15 [E0 31 6B 01] W25 [E0 31 6B 01] W15 t S19.2E 99999 V 10600 t v W15 [E0 31 6B 01] W25 [E0 31 6B 01] W15 T S19.2E 11700 H 9750 t V W15 [E0 31 6B 01] W25 [E0 31 6B 01] W15 t S19.2E 99999 H 10600 t V W15 [E0 31 6B 01] W25 [E0 31 6B 01] W15 T

S13.0E 11700 V 9750 t v W15 [E0 31 6B 02] W25 [E0 31 6B 02] W15 t S13.0E 99999 V 10600 t v W15 [E0 31 6B 02] W25 [E0 31 6B 02] W15 T S13.0E 11700 H 9750 t V W15 [E0 31 6B 02] W25 [E0 31 6B 02] W15 t S13.0E 99999 H 10600 t V W15 [E0 31 6B 02] W25 [E0 31 6B 02] W15 T

S5.0E 11700 V 9750 t v W15 [E0 31 6B 03] W25 [E0 31 6B 03] W15 t S5.0E 99999 V 10600 t v W15 [E0 31 6B 03] W25 [E0 31 6B 03] W15 T S5.0E 11700 H 9750 t V W15 [E0 31 6B 03] W25 [E0 31 6B 03] W15 t S5.0E 99999 H 10600 t V W15 [E0 31 6B 03] W25 [E0 31 6B 03] W15 T

These are my first 3 sat positions the number (in hex) after 31 6B is the stored position)

What you are missing without the rotor plugin is the ability to move your rotor hunting for new positions or re-aligning the dish. xdipo can help there, it is a stand alone program.