diff --git a/cron/cleanup.php b/cron/cleanup.php
index 064ec59..11a3b71 100644
--- a/cron/cleanup.php
+++ b/cron/cleanup.php
@@ -66,10 +66,6 @@ function hasDataAssociated($iUserId)
     $hResult = query_appdb($sQuery);
     if(mysql_num_rows($hResult)) return true;
 
-    $sQuery = "SELECT * FROM appOwners WHERE ownerId = $iUserId";
-    $hResult = query_appdb($sQuery);
-    if(mysql_num_rows($hResult)) return true;
-
     $sQuery = "SELECT * FROM appVotes WHERE userId = $iUserId";
     $hResult = query_appdb($sQuery);
     if(mysql_num_rows($hResult)) return true;
diff --git a/tables/appdb_tables.sql b/tables/appdb_tables.sql
index a6988c3..dc0902d 100644
--- a/tables/appdb_tables.sql
+++ b/tables/appdb_tables.sql
@@ -6,7 +6,6 @@ drop table if exists vendor;
 drop table if exists appFamily;
 drop table if exists appVersion;
 drop table if exists userExperience;
-drop table if exists apiUsage;
 drop table if exists appCategory;
 drop table if exists appHitStats;
 drop table if exists catHitStats;
@@ -14,10 +13,8 @@ drop table if exists appComments;
 drop table if exists appData;
 drop table if exists appDataQueue;
 drop table if exists appQueue;
-drop table if exists appCrosslink;
 drop table if exists appBundle;
 drop table if exists appVotes;
-drop table if exists appRating;
 drop table if exists appNotes;
 drop table if exists sessionMessages;
 
@@ -90,13 +87,6 @@ create table userExperience (
        wineCfgFile	text,
        key(uExpId)
 );
-
-create table apiUsage (
-       apiUsageId     int not null auto_increment,
-       versionId      int not null,
-       apiid	      int(11) not null,
-       key(apiUsageId)
-);
        
 
 /*
@@ -111,17 +101,6 @@ create table appCategory (
 );
 
 
-/*
- * not used yet
- */
-create table appCrosslink (
-	appId		int not null,
-	catId		int not null,
-	key(appId),
-	index(catId)
-);
-
-
 /*
  * bundleId is the appId of the 'owner app'
  */
@@ -226,22 +205,6 @@ create table appVotes (
 );
 
 
-/*
- * app ratings
- */
-create table appRating (
-	id		int not null auto_increment,
-	time		timestamp,  /* we might wanna expire old ratings */
-	versionId	int not null,
-	userId		int not null,
-	system          enum('windows', 'fake'),
-	score		int not null,
-	key(id),
-	index(versionId),
-	index(userId)
-);
-
-
 /*
  * application notes
  */
diff --git a/tables/appratings.sql b/tables/appratings.sql
deleted file mode 100644
index b509b49..0000000
--- a/tables/appratings.sql
+++ /dev/null
@@ -1,7 +0,0 @@
-SELECT appVersion.appId, appVersion.versionId, appName, versionName, avg(score) as rating, count(appVersion.versionId) as hits
-FROM appRating, appFamily, appVersion 
-WHERE (appVersion.versionId = appRating.versionId
-AND appFamily.appId = appVersion.appId) 
-AND system = 'fake' AND rating = 5
-GROUP BY appVersion.versionId
-ORDER BY appName ASC