ok so for system mounting i used this code in an adb shell from my pc
toolbox mount -o remount, rw /system/
which gave me rw system with root explorer,
I then tried the A100 root that is linked in my OP and it finished successfully and i now have toggle rw working in root explorer.
checking md5's now
recovery.img md5 : 17633b3ca8cf81a88a1766b88100c39e
my adb is being retarded and wont gimme the md5 for the cm9 build....will try later..
The depressing thing about tennis is, no matter how good I get, I'll never be as good as a wall. -Mitch Hedberg