Try this:
<%if image_column%>
<img src="db.cgi?db=table&do=view_file&cn=<%image_column%>&id=<%primary_key%>" width="59" height="90" vspace="7" hspace="7" border=1>
<%else%>
do something else
<%endif%>
TheStone.
B.
<%if image_column%>
<img src="db.cgi?db=table&do=view_file&cn=<%image_column%>&id=<%primary_key%>" width="59" height="90" vspace="7" hspace="7" border=1>
<%else%>
do something else
<%endif%>
TheStone.
B.