diff --git a/Dnn.CommunityForums/DnnCommunityForums.dnn b/Dnn.CommunityForums/DnnCommunityForums.dnn
index 9f04cea8..f5782761 100644
--- a/Dnn.CommunityForums/DnnCommunityForums.dnn
+++ b/Dnn.CommunityForums/DnnCommunityForums.dnn
@@ -424,10 +424,15 @@
                 <name>09.00.00.SqlDataProvider</name>
                 <version>09.00.00</version>
             </script>
+            <script type="Install">
+                <path>sql</path>
+                <name>09.01.00.SqlDataProvider</name>
+                <version>09.01.00</version>
+            </script>
             <script type="UnInstall">
               <path>sql</path>
               <name>Uninstall.SqlDataProvider</name>
-              <version>09.00.00</version>
+              <version>09.01.00</version>
             </script>
           </scripts>
         </component>
diff --git a/Dnn.CommunityForums/Entities/ForumInfo.cs b/Dnn.CommunityForums/Entities/ForumInfo.cs
index 383f7517..0f4f5dac 100644
--- a/Dnn.CommunityForums/Entities/ForumInfo.cs
+++ b/Dnn.CommunityForums/Entities/ForumInfo.cs
@@ -160,6 +160,7 @@ public string LastPostTopicUrl
         [IgnoreColumn]
         public bool LastPostIsTopic => this.LastReplyId == 0;
 
+        [IgnoreColumn]
         public string LastPostSubject
         {
             get
@@ -222,15 +223,15 @@ internal DotNetNuke.Modules.ActiveForums.Entities.IPostInfo LoadLastPost()
 
             // return this.lastPostInfo = this.LastReplyId == 0 ? (DotNetNuke.Modules.ActiveForums.Entities.IPostInfo)new DotNetNuke.Modules.ActiveForums.Controllers.TopicController(this.ModuleId).GetById(this.LastTopicId) : new DotNetNuke.Modules.ActiveForums.Controllers.ReplyController(this.ModuleId).GetById(this.LastReplyId);
         }
-
-        [ColumnName("LastPostAuthorName")]
-        public string LastPostUserName { get; set; }
-
-        [ColumnName("LastPostAuthorId")]
-        public int LastPostUserID { get; set; }
-
-        [ColumnName("LastPostDate")]
-        public DateTime? LastPostDateTime { get; set; }
+        
+        [IgnoreColumn]
+        public string LastPostUserName => this.LastPost != null && this.LastPost.Content != null ? this.LastPost.Content.AuthorName : string.Empty;
+        
+        [IgnoreColumn]
+        public int LastPostUserID => this.LastPost != null && this.LastPost.Content != null ? this.LastPost.Content.AuthorId : DotNetNuke.Common.Utilities.Null.NullInteger;
+        
+        [IgnoreColumn]
+        public DateTime? LastPostDateTime => this.LastPost != null && this.LastPost.Content != null ? (DateTime)this.LastPost.Content.DateUpdated : DotNetNuke.Common.Utilities.Null.NullDate;
 
         public int PermissionsId { get; set; }
 
diff --git a/Dnn.CommunityForums/sql/09.01.00.SqlDataProvider b/Dnn.CommunityForums/sql/09.01.00.SqlDataProvider
new file mode 100644
index 00000000..b3c4a2bb
--- /dev/null
+++ b/Dnn.CommunityForums/sql/09.01.00.SqlDataProvider
@@ -0,0 +1,31 @@
+SET NOCOUNT ON 
+GO
+
+/* issue 792 begin -  activeforums_Forums -- remove columns no longer used */
+
+IF  EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[DF_{objectQualifier}activeforums_Forums_LastPostId]') AND type = 'D')
+ALTER TABLE {databaseOwner}{objectQualifier}activeforums_Forums DROP CONSTRAINT DF_{objectQualifier}activeforums_Forums_LastPostId
+GO 
+IF EXISTS(SELECT * FROM sys.columns WHERE [name] = N'LastPostId' AND [object_id] = OBJECT_ID(N'{databaseOwner}[{objectQualifier}activeforums_Forums]'))
+ALTER TABLE {databaseOwner}[{objectQualifier}activeforums_Forums] DROP COLUMN LastPostId
+GO 
+IF  EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[DF_{objectQualifier}activeforums_Forums_LastPostAuthorId]') AND type = 'D')
+ALTER TABLE {databaseOwner}{objectQualifier}activeforums_Forums DROP CONSTRAINT DF_{objectQualifier}activeforums_Forums_LastPostAuthorId
+GO 
+IF EXISTS(SELECT * FROM sys.columns WHERE [name] = N'LastPostAuthorId' AND [object_id] = OBJECT_ID(N'{databaseOwner}[{objectQualifier}activeforums_Forums]'))
+ALTER TABLE {databaseOwner}[{objectQualifier}activeforums_Forums] DROP COLUMN LastPostAuthorId
+GO 
+IF EXISTS(SELECT * FROM sys.columns WHERE [name] = N'LastPostAuthorName' AND [object_id] = OBJECT_ID(N'{databaseOwner}[{objectQualifier}activeforums_Forums]'))
+ALTER TABLE {databaseOwner}[{objectQualifier}activeforums_Forums] DROP COLUMN LastPostAuthorName
+GO 
+IF EXISTS(SELECT * FROM sys.columns WHERE [name] = N'LastPostSubject' AND [object_id] = OBJECT_ID(N'{databaseOwner}[{objectQualifier}activeforums_Forums]'))
+ALTER TABLE {databaseOwner}[{objectQualifier}activeforums_Forums] DROP COLUMN LastPostSubject
+GO 
+IF EXISTS(SELECT * FROM sys.columns WHERE [name] = N'LastPostDate' AND [object_id] = OBJECT_ID(N'{databaseOwner}[{objectQualifier}activeforums_Forums]'))
+ALTER TABLE {databaseOwner}[{objectQualifier}activeforums_Forums] DROP COLUMN LastPostDate
+GO 
+
+/* issue 792 end -  activeforums_Forums -- remove columns no longer used */
+
+/* --------------------- */
+