--- print.install.org	2010-08-13 11:47:30.000000000 +1200
+++ print.install	2010-08-13 11:59:52.000000000 +1200
@@ -316,9 +316,9 @@
 function print_update_6004() {
   $ret = array();
   // BLOCK_CACHE_PER_PAGE -> 4
-  $ret[] = update_sql("UPDATE {blocks} SET cache = 4 WHERE module = 'print' AND delta = 0");
+  $ret[] = update_sql("UPDATE {blocks} SET cache = 4 WHERE module = 'print' AND delta = '0'");
   // BLOCK_CACHE_GLOBAL -> 8
-  $ret[] = update_sql("UPDATE {blocks} SET cache = 8 WHERE module = 'print' AND delta = 1");
+  $ret[] = update_sql("UPDATE {blocks} SET cache = 8 WHERE module = 'print' AND delta = '1'");
   return $ret;
 }
 
@@ -364,7 +364,7 @@
     $print_display_comment = variable_get('print_display_comment_'. $value->type, 0);
     $print_display_urllist = variable_get('print_display_urllist_'. $value->type, 1);
 
-    $result = db_query('SELECT n.nid, link, comments, url_list from {node} AS n LEFT JOIN {print_node_conf} AS pnc ON n.nid = pnc.nid WHERE type = "%s"', $value->type);
+    $result = db_query("SELECT n.nid, link, comments, url_list from {node} AS n LEFT JOIN {print_node_conf} AS pnc ON n.nid = pnc.nid WHERE type = '%s'", $value->type);
     while ($conf = db_fetch_object($result)) {
       if (($conf->link != NULL) && ($conf->comments != NULL) && ($conf->url_list != NULL)) {
         $conf->link = !$print_display ? 0 : $conf->link;