Try looking at this kb article for guidelines on how to migrate your SQL 2005 database to our SQL 2008 server. http://support.Winhost.com/KB/a699/how-to-migrate-from-your-local-sql-2005-database-to.aspx
We'll assist you in the best way we can by pointing you to the right direction but bear in mind we're not there in front of your computer nor can we log into your computer and perform the task for you. But we'll see what we can do for you and try to offer you as much of a clear and specific steps as we can.
What if I send you the database file? See, the problem is that I don't understand much and I had some problems with my administrator, so I don't trust him to do it. Right now I don't have another person who can do it for me.
Sorry we will not be able to run it for you. First off it's against our policy to do that. This can compromise your own integrity of your database and puts us liable if things ever go wrong. You may want to hire another administrator so that they can perform the action for you.