i tried downloading quicktime play7

Click the big blue download button at…

http://support.apple.com/kb/DL923

See if that downloads & installs.

There is version info at…

http://support.apple.com/kb/HT3678

1. After Download and Install, you have to Launch Quictime 7 from /applications/utilities, or simply go to the magnifying glass in the top right hand part of the Screen and Type Quicktime 7 and select

2. If you have purchased a Serial for Quicktime 7 Pro, then go to Quicktime 7 in Menu Bar at the Top of the screen, Enter in Your Name and Serial Exactly as it is listed in the Email you received, after entering in Serial Press Return on Keyboard and Quick Time 7 Pro will be working properly