Heteroduino and stepper motors direction and speed problems

Hello everyone, :-)

Its about a new component : heteroduino
http://www.food4rhino.com/app/heteroduino

Is a bit like the stepper motor control of Firefly but it take a feedback from Accelstepper library wich is nice actually :-)

But I had 2 problems that make every thing just impossible to use :

DIRECTION OF STEPS :

The motor can just reach one direction (for exemple clockwise) and when comes time to switch... not possible.

Details : When I put a value in HD.SM in V input, I put for exemple 100 with a slider so i have 100 steps and it works. Then I write 200, still working. and when I put a value that is less than the last higher value, for exemple 180 in my case the motor go endless to an higher amount, i mean 201,202,203...1000 etc...
Dont undestand why :-/

SPEED :
The speed is really really slow.

Details : The Firefly stepmotor component use the same library as heteroduino wich is Accelstepper.h but still going way faster.
I tried lot of values in the S input (speed) but is not changing the speed that much, and sometimes its even changing the steps.

If there is another place where I have to post this, let me know also and I'll do it :-)

See you soon and hope some people are interested in the same problem ^^
thanks :-)