It could just be your browser/server. Are you using pop-up blockers that might prevent proper installation? Are you using one of the required browsers (Firefox, Mozilla, Netscape, Opera)? Do you have the adequate system requirements[ http://www.adobe.com/products/flashplayer/productinfo/systemreqs/ ] ? Did you follow the correct instructions for your computer type [ http://www.adobe.com/products/flashplayer/productinfo/instructions/ ] ?
Otherwise, I have no idea! I did have problems with Adobe Shockwave previously. . . Then we got a new PC, no problem.
Good Luck!!!
Alright - I have figured out one more thing - try troubleshooting to figure out and fix the problem!!! Here's a whole list of steps you can use to do this . . . (Note Step 3!!! BEFORE INSTALLING, So ignore step 2 because it tells you to install right after uninstalling - do not use step 2 right before step 3! Stupid people, trying to confuse users who want help!) Sorry, just thought I'd give you a heads-up, here's the link . . . http://kb.adobe.com/selfservice/viewContent.do?externalId=tn_19166&sliceId=2
p.s. - I'm fresh out of ideas, and, truth be told, I'm not very good at solving computer problems especially when it might have to do with internet . . . Though I did set up someone's wireless internet connection, took ages to figure out . . . Anyway - I hope you can get some help with that. If I were you, I'd go to the nearest Office Max/Staples/wherever there's a computer expert and ask then to help you one-on-one, most are willing to help you free-of-charge, but others are greedy . . . Again, good luck!