URLs of the form: http://www.local-angle.com/album/index.cgi?topn=40 Are equivelent to the request generated by:

<form action="http://www.local-angle.com/album/index.cgi" method="get"
+>
<input type="hidden" name="topn" value="40">
<input type="submit">
[download]

Because of the properties of an anchor (<a>), it will always do a GET, as it has no form information to POST.

The solutions to your problem are:

1. Live with it
2. Use forms, instead of anchors

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RatArsed