Power Mac :: Safari Acting Up And No Internet Plugin?

How come Safari is acting up this evening? Yahoo says that I need a Internet Plug-in.I will tell you that I have a Power Mac G4 with two hard drives. First one with OS 9.0 and used only for old Adobe software and backups. The second one is for OS X 10.4 with a upgrade of 10.4.11 from Apple. My Processor: Dual 1 GHz Power PC G4; 2MG L3 cache per processor. Startup Disk OX X10.4 with memory 1.5 GR SDRAM. I have to have two hard drives as the old Adobe software: Pagemaker, Illustrator, Photoshop, and Canvas will not go onto OS X 10.4. The upgrades to these will go onto OS X10.4.  

My mac does not have problems with starting up. It starts fine. The problem is that I can't seem to get Adobe Flash Player to work. It loads on fine but doesn't work at all. And now Safari has kidded me off of the internet (4) four times this evening. There was 14 downloads from Apple between the dates 1/30/2012 - 2/2/2012. That was great. But Safari is giving me a lot of trouble. I need to know what I can do to get the Internet Plug-in on and to stop Safari kicking me off of the internet.  

I will have to call Adobe and ask them for an older version of Flash Player and go the way to the back door to get the new Flash Player to work. If this doesn't work then I will have to try to hire an old mac person to help me. I really don't want to do this as they will do things their way and chances are they won't know what to do.

Info:
Mac OS X(10.4.2)