the internet says i can't watch anything online says i don't have divx player...

Sometimes websites will try to trick you in to thinking you don't have the software required to play a video, but in fact, you do. These are ploys to get malware and viruses on to your system. What website were you visiting that prompted you to download DIVX & Flash?

go to the official adobe sight , download the latest flash player , install it and then restart your computer