Microsoft's free Shared Computer Toolkit lets you configure a PC that can be used to search the Internet, look up resources, and run approved programs; it also stops users from making permanent system changes, running arbitrary programs, or introducing malware. Administrators on domain-based PCs have long been able to do this; the toolkit offers a similar level for any PC. You don't need an IT degree—the kit leads an administrator through the steps of locking down a system. The toolkit can be downloaded at www.microsoft.com/sharedaccess

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The method used to make modules display or hide in a template and use either a <table> or <div> layout is a simple one.

Use a simple switch statement to decide on either a 3 column(default/normal) display format, or a two or single column format.  This way there is no need to maintain two index.php files only one.  All the code for the mid-column based part of my template is duplicated according to number of columns within that switch statement.  The header and footer code are executed before, and after the switch statement.

I create mutiple column display code, which is switched based on the "option=" portion of the requesting url.

For example, at roadstarclinic.com, whenever "$option == 'com_simpleboard'" the template uses a two column format, and moves the right column to the left side of the screen.

I add and remove component options as needed within the two sections of that switch statement.