Also, for the hyperlink color question, try these steps. Since I'm using PPT2003, your steps may differ - but you should be able to locate the correct option.
1. click on Format menu
2. click on slide design
3. this will open the slide design in the task pane towords the right side
4. click on the Color schemes
5. then click on edit color schemes at the bottom
6. this will open edit color scheme window
7. click the color next to Accent and hyperlink and hit change color
8. this will open Accent and hyperlink color window.
9. select the color that you want to apply for the hyperlinks and hit ok
10. then hit apply and close the edit color scheme window.
