[stamos2003]

I use the % system and I try to give 30% discount which works so far ok, but when it goes to paypal payment paypal gives an error and says that the ammount for the payment is not right.
what is this?!

edit: i installed everything from the scratch but version 1.3 wont work with paypal, paypal always complains that the amount is not right. what's going wrong?

edit2: the version 1.4 does the same, paypal wont accept the payment:
The link you have used to enter the PayPal system contains an incorrectly formatted item amount

edit3: as I see at the source the form contains
<input type="hidden" name="amount" value="7,00" />
put it must be a "." instead of a ",":
<input type="hidden" name="amount" value="7.00" />

how can I change this?!