Some content working under flash others not...

This get's really confusing because I cannot see this one site on any of my computers (3) but I sent the link to my mother and she can see and hear it.  First off, here is the site...(actually there's two) http://niagarafallslive.com/Niagara_Falls_Webcam.htm   and http://niagarafallslive.com/niagara_falls_hilton_fallsview_6361_fallsview_boulevard_niagara_falls_canada.htm   I cannot see either one of these on two laptops at my house, and the desktop.  Also, if I go into facebook and try to play "puzzlespot" I cannot see that on my computer but I can see it on the other two computers.  Other sites work just fine and I have tried all these steps on all the computers with IE 8 (which I'm sorry I updated to now) and google chrome.

I searched my issue which brought me to this http://forums.adobe.com/message/2772022 if you scroll down to "eidnolb's" answer, I checked those add-ons and shockwave flash object and active x control are enable however, Flash10e.ocx is not even listed.  Which brought me to http://forums.adobe.com/thread/580368 and I do not see anything there that can help me.  (I actually have a few Adobe paid programs that include Adobe Flash so I am thinking I should not even have this problem.  I apologize for all the links I just want to show where I've been and what is going on by providing the links

I am not sure what system information you need but I have IE8, and I'm not sure if google chrome has a version.  Recently I updated flash player and IE - anyway, if you need more information please ask.  I'm so frustrated and so confused.  I am not a computer whiz but I usually can figure out the minor issues on my own by searching similar situations...not this time.

Thanks,

Kerri