[CentOS] Firefox 3.0.4 and Adobe Flash (CentOS 5 (32bit))

Last night, a visitor was using my daughters box and she was using
mine. The web site she was on wanted Adobe Flash or a newer version of
Adobe Flash. At that moment, I forgot that I have the Adobe Yum
Repository installed. I downloaded the .rpm file from Adobe and when I
tried to install it, got a message that a later version is already
installed. First thought was the other thread, about Firefox and Adobe
for .pdf files. Is this a glitch in the latest version of Firefox we
are now using? My box is fully updated. In Add Ons, for Plug Ins, I
see Shockwave Flash v. 9.0 r124 and the rest is Mplayer stuff. TIA