something like this:
%GALLERIES
TYPE Text
CATEGORY Mixed
AMOUNT 200
HTML ##Date## :: ##Category## :: <a href="cgi-bin/at/out.cgi?s=90&u=##Gallery_URL##">##Description##</a><br />
SWITCH
{
LOCATION 50
HTML ##Date## :: ##Category## :: <a href="cgi-bin/at/out.cgi?s=80&u=##Gallery_URL##">##Description##</a><br />
}
%>
SWITCH
{
LOCATION 100
HTML ##Date## :: ##Category## :: <a href="cgi-bin/at/out.cgi?s=70&u=##Gallery_URL##">##Description##</a><br />
}
%>