Correctly extract old user page count from DB

components/printer.php

@@ -98,7 +98,7 @@ $res->Close();
 //get the number of pages printed by "old" users and add it to the total
 $res = $sucsDB->Execute("select sum(pages) as pages from printer where username = 'old' group by username order by sum(pages) desc");
 $old = $res->FetchRow();
-$old = $old[0];
+$old = $old['pages'];
 $res->Close();
 $total += $old;
 //Output two lines at the bottem of the table, one for "old" users and the other for the total