To add a Navigation Bar Insert Navigation
Select: Link bars Bar with custom links Next
Choose a button style that is suitable for your audience and purpose. Next.
Choose the navigation option for the buttons to appear at the top of the page. Finish.
Make sure all of your pages are listed in the Links section. OK.
Add links for all of your web pages if you can’t see them. OK. Copy and paste the navigation bar onto all of your pages.
You want to change the Behaviour of the image. How to make an image Rollover effect in Frontpage: You want to change the Behaviour of the image. Go to: Format Behaviours
Use the drop down arrow on Insert Choose: Swap Image
Browse for the image you want to swap with. Remember to tick Restore on mouseout event!