Ms Dash Question?

I've just aquired Slayers auto installer 2.6. I would like to know how i use this disc to retore my original ms dash?

I've softmodded my xbox with EVOX but half-way down the page there is a MS dash button but when i scroll down to it, it just goes over it and onto the next one, as if it has been disabled.

My xbox is a UK release 1 and the dash has never been updated. Could this have something to do with?

Thats why I have the auto installer disc, i've heard it can restore your original MS dash so you can swap between EVOX and Ms dash.

Anybody know how to?

Thanks

Chris