Microsoft Access - how to protect the queries and tables in access, not the database. Need it on urgent basis

Hi,

I have a database. I would like to share this database to a larger group. I do not want them to access to queries or tables, instead they can access the required data through forms only.

Can you please let me know how can i protect the queries/tables, even its better if they cannot see them at all.

Have you gone through this?

http://www.techrepublic.com/blog/10things/10-tips-for-securing-a-microsoft-access-database/552

these are still giving the user to access queries/tables through different options. I would like to set up a password kind of thing for all tables and queries so that they cannot decode it.

Points #4 and #8 seemed to be on target.

point #8 is a password to database as a whole. If i put password to it, they cant access the database itself. I want the user to access database, but should not have access to queries and tables.

Which is where the point on splitting the front end into its own database comes in.