Paypal HTML issue

I have searched the older topics of this question but seem to find no resolve for it. I am attempting to get a Donate button to appear in my forum's description (where it says "Home of the Star Wars The Old Republic MLP Friendship is Magic Guild") but everytime I attempt to add the encrypted or non-encrypted code and click "Save" it generates a blank page in the admin panel, and even if I go to the forum nothing is there. The HTML works when it is placed into a widget, but I'd prefer not using the widget because it squashes the board in the center. I using this donation button linked to a personal account if that makes a difference.

Forum URL: http://swtorponies.forumotion.com/
Forum type: Phpbb 2
Encrypted

Code:

<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
<input type="hidden" name="cmd" value="_s-xclick">
<input type="hidden" name="encrypted" value="-----BEGIN PKCS7-----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-----END PKCS7-----
">
<input type="image" src="https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
<img alt="" border="0" src="https://www.paypalobjects.com/en_US/i/scr/pixel.gif" width="1" height="1">
</form>

Not Encrypted

Code:

<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
<input type="hidden" name="cmd" value="_donations">
<input type="hidden" name="business" value="J5DZ4X2LD9JK6">
<input type="hidden" name="lc" value="US">
<input type="hidden" name="item_name" value="Star Ponies">
<input type="hidden" name="item_number" value="06162011">
<input type="hidden" name="currency_code" value="USD">
<input type="hidden" name="bn" value="PP-DonationsBF:btn_donate_LG.gif:NonHosted">
<input type="image" src="https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
<img alt="" border="0" src="https://www.paypalobjects.com/en_US/i/scr/pixel.gif" width="1" height="1">
</form>

I have been troubleshooting this myself and have found that the HTML is too long to fit in the sit description. I have been creating separate pages, but only so that it is a button that leads to another button. Anyone have any suggestions or tips on drawing the Donate button directly onto the page?