Hello Paul,

"1. How to make a page extension .php"

Go to Step 2 Sitemap Creation, highlight the page you would like to alter by giving it focus with your mouse, then click on the 'Properties' button on the right-hand side of the screen.  In the new window which opens go to the 'Expert' tab...  you will then see a little drop-down menu entitled 'File Name Format'...  select 'php' from the menu and you're done.

2. How to get mouse over tips to work on test, buttons, images.

You can define the general settings for the mouseover in Step 1 Template Style > Tooltip on mouse over.  For the mouseover tips to appear, however, you have to first insert some text as appropriate.  For example, if you are using an Image Object, you can enter the mouseover text on the 'General' tab > Properties > Link > Description > Tip on mouse over

N.B. if you want a mouseover effect with no hyperlink then simply set the 'Link' field to 'None'  -  the mouseover will still work as normal even without a link set.

Hope this helps...

Kind regards,

Paul