New Post: Upgrade fails

Hi, we're currently running v 1.6.313 and trying to upgrade to the latest version. For some reason the upgrade of the database fails which then starts causing all kinds of errors. The Install.aspx page reports many errors like these.

Current Database Version: 1.0.0.0
00:00:00.0060000 - Upgrading To Version: 1.6.315.0
00:00:00.0150000 - Creating Custom Field Views
00:00:00.2810000 - Custom fields created!
00:00:00.2850000 - Executing Script: 0.7.719.0.SqlDataProvider.sql Error!
Error Details
File 0.7.719.0.SqlDataProvider.sql
Error Cannot find the object "dbo.Bug" because it does not exist or you do not have permissions.


00:00:00.3090000 - Executing Script: 0.7.820.0.SqlDataProvider.sql Error!
Error Details
File 0.7.820.0.SqlDataProvider.sql
Error Cannot find the object "dbo.ProjectRoles" because it does not exist or you do not have permissions.


00:00:00.3260000 - Executing Script: 0.7.832.0.SqlDataProvider.sql Error!
Error Details
File 0.7.832.0.SqlDataProvider.sql
Error Invalid object name 'HostSettings'. Updating Host Settings


00:00:00.3300000 - Executing Script: 0.7.854.0.SqlDataProvider.sql Error!
Error Details
File 0.7.854.0.SqlDataProvider.sql
Error Operand type clash: uniqueidentifier is incompatible with int Invalid column name 'ProjectId'.


00:00:00.3460000 - Executing Script: 0.7.880.0.SqlDataProvider.sql Error!

And meany more. How do I get the upgrade to work properly? I've tried running it several times. I've tried downloading the intermediary version to attempt 1 upgrade at a time, but there's been no luck. I backed up the DB prior to the upgrade so I restore it each time before my next attempt but it's simply not working. Is there something I am missing?