How much for this???

I am looking for a good gumtree auto poster and i am finding it really hard to find.

I have downloaded the ezgumtree poster from here but it is not posting my ads in full and changing some of the letters. And with it doing that my ads will be pointless.

Now is there a programmer here who could put together something for me?
and What will it cost?

If you can edit the ez gumtree poster and improve it to how i want it that would be even better.