Explorer Toolbar disappeared. Why does the internet say to click on Edit and Tools when they're gone? XP?

Without Edit-Copy-Paste I cannot cut and paste photos/links onto Facebook or onto emails from yahoo pictures. How do I get my Explorer 7 toolbar back if I can’t click on Tools either since it’s gone? And could this be such a huge set of viruses that I may be forced to buy a new pc?? Oh, the pain….