It looks like its having errors on the scripts for the webstore feature. If you are not going to use webstore you can probably ignore that.
It seems the problem is some checks for existing objects looking in sysobjects table, since it replaced the [dbo]. its getting invalid object because that table really is owned by dbo.
The scripts are located at /Setup/applications/webstore/SchemaUpgradeScripts/mssql
example from the 0.0.0.5.config script:
if exists (select * from [dbo].sysobjects where id = object_id(N'[dbo].[ws_GoogleCheckoutLog_Delete]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
drop procedure [dbo].[ws_GoogleCheckoutLog_Delete]
GO
maybe could solve it by finding all references to [dbo].sysobjects and change it to dbo.sysobjects so it won't be effected by the replacement. Then try the setup page again it should try to run the script again.
Hope it helps,
Joe