Some more info- This is what the "Create a subscription button" does...
<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
<img alt="" border="0" src="https://www.paypal.com/en_US/i/scr/pixel.gif" width="1" height="1">
<input type="hidden" name="cmd" value="_xclick-subscriptions">
<input type="hidden" name="business" value="paypal@yourdomain.com"> // Store Paypal Address
<input type="hidden" name="item_name" value="My Product"> // Product Name
<input type="hidden" name="item_number" value="0002322"> // Product Number
<input type="hidden" name="no_shipping" value="1">
<input type="hidden" name="no_note" value="1">
<input type="hidden" name="currency_code" value="USD">
<input type="hidden" name="lc" value="US">
<input type="hidden" name="bn" value="PP-SubscriptionsBF">
<input type="hidden" name="a3" value="59.95"> // Products Price (Net):
<input type="hidden" name="p3" value="1"> // Atribute - Number of "Term"
<input type="hidden" name="t3" value="M"> // Term - (M) Month
<input type="hidden" name="src" value="1"> //Recurring payments. If set to “1,” the payment will recur unless
your customer cancels the subscription before the end of the
billing cycle. If omitted, the subscription payment will not recur
at the end of the billing cycle
<input type="hidden" name="sra" value="1"> //Reattempt on failure. If set to “1,” and the payment fails, the
payment will be reattempted two more times. After the third
failure, the subscription will be cancelled. If omitted and the
payment fails, payment will not be reattempted and the
subscription will be immediately cancelled
</form>
