[SOLVED] Different Browsers Produce Different Things

I am using Template 9 (www.memoriesbyjason.com) and depending what computer I am on depends on what is seen and what is available. I have put many pictures in the "Portfolio" page and on some computers the new pictures (with music) that I have put is there and on other computers they are the default pictures. Also, the font that is on my header and footer are different depending on what browser I am on. Can you please help me with this?

Thank you