My Mac is OS 10.5.8 and I have tried to download the newest Adobe Flash (I have 10.3.183.86 but my games need a newer one) and I keep getting an error message. Any hints on fixes? I have updated regularly, but lately there hasn't been any new updates. Do I need a newer version of Safari? Thanks for all your help.
you should and need to be running what is supported by Apple and others now: Snow Leopard 10.6.8 which you can buy for $30, then see if you can upgrade to Lion or ML for another $19-29 from App Store (but by phone as only Mountain Lion is offered directly)
Direct you to the proper forum for MacBook :
MacBook Series Forums
Mac OS X Forum
This forum deals with a desktop/tower 65lb Mac Pro