OK, you now should have the elements needed to create the mouse over effect (actually four separate 3-part mouse-over effects). Referring to the chart to the left you will need to Export (File menu) each of the four sections for each of the three images. Select the gray HOME quarter and Export it to Gif and name it homenorm.gif to indicate that it is part of the normal group the visitor will see when he/she loads the page. Select the SEND E-MAIL quarter and name it emailnorm.gif. Name and export the last two sections using norm in the file name.
Repeat this process with the next group of four (the images that represent the mouse-over state) and append the names for these with over, such as homeover.gif, emailover.gif, etc. Export the last group of four (the mouse-off state) and append each name with off, such as homeoff.gif. These images will remain on the page when the mouse is moved off the images.