[TimberFloorAu]

Okies I have a fix.

The multi selection version, change to single selection drop down menu. Without blank as first choice.

Then the code I have is thus:

<!--buy me a beer -->
<center>

<if condition="$post['field22']"><div class="info">
<a href="https://www.paypal.com/cgi-bin/webscr?cmd=_xclick&business=$post[field22]&item_name=Buy me a Beer&amount=3%2e00&no_shipping=0&no_note=1&tax=0&currency_code=GBP&lc=GB&bn=PP%2dDonationsBF&charset=UTF%2d8" target="_blank" rel="nofollow" title="Click to buy me a Beer">
Buy Me a Drink</a></if><if condition="$post['field24']"><img alt="Buy me a Beer?" border="0" src="http://www.mysite.com/images/drinks/$post[field24].png" border="0"/></div></if></center>

<!--end buy me a beer -->

This works fine.