Forum .LRN Q&A: Response to problems with PG7.2.1 + AOL server3.4.2

Thanks Jeff, That "somewhat" worked. I now get in dotlrn/clubs/e-learning/forums/forum-view

Database operation "0or1row" failed (exception NSINT, "Query returned more than one row.")

SQL: 
      
	select site_node__url(node_id) 
          from site_nodes 
         where object_id = '0'
    
      
    while executing
"ns_pg_bind 0or1row nsdb0 {
      
	select site_node__url(node_id) 
          from site_nodes 
         where object_id = :package_id
    
      }"
    ("uplevel" body line 1)
    invoked from within
"uplevel $ulevel [list ns_pg_bind $type $db $sql"
    invoked from within
"db_exec 0or1row $db $full_name $sql"
    invoked from within
"set selection [db_exec 0or1row $db $full_name $sql]"
    ("uplevel" body line 2)
    invoked from within
"uplevel 1 $code_block "
    invoked from within
"db_with_handle db {
	set selection [db_exec 0or1row $db $full_name $sql]
    }"
    (procedure "db_string" line 7)
    invoked from within

What have we changed that is bring all these new problems?