Hello ssj100,
Kay states (somewhere) in this forum that some features do not work yet with Windows 7 (sorry, I do not have a link at hand ;-) ). As you have noticed, "SuRun explorer here" is an example. Apart from that, I am using SuRun 1.2.0.9 Beta 10 with Windows 7 64-Bit and have not encountered any problems. (In fact, even SuRun 1.2.0.8 and earlier already supported 64-Bit Windows versions.)
Concerning the final release of 1.2.0.9: Kay states (in German) at
http://forum.kay-bruns.de/post/2666 that he has not time for developing SuRun by the end of April. But I am sure that he will finish SuRun 1.2.0.9 when he has enough time. :-) And I also think that SuRun is a great program!