I just finished installing the m030 ROW kit. Struts have a silver circle painted on the body; US sport is purplish.
Spring colors I found on rennlist. Seems right as I recall my rear springs are red-red.
http://forums.rennlist.com/rennforums/boxster-and-boxster-s-986-forum/375268-row-m030-question.html
Front:
986.343.531.11 504 RoW030 97-02 coil spring set - red/yellow
986.343.531.12 504 USA030 97-02 coil spring set marked red/white
Rear:
986.333.531.11 504 RoW030 97-02 coil sprg set 5 speed - red/red
986.333.531.12 504 RoW030 97-02 coil sprg set tiptronic - red/yellow
986.333.531.13 504 USA030 97-02 coil sprg set 5 speed - red/brown
986.333.531.14 504 USA030 97-02 coil sprg set tiptronic - red/white