What yoyo said, then reboot after moving the files to the trash. If you have any trouble moving them start up the computer with the Shift key down till you see Extensions Disabled on screen, and try again.
Nuc's link is full of good stuff. As for installing--if the application doesn't have any extensions that it installs, all you have to do is open the .sit file (that's probably what you'll get) and drag the app to wherever you want to keep it on your HD.
_________________________ MACTECHubi dolor ibi digitus
Xplain's use of MacNews, AppleCentral and AppleExpo are not affiliated with Apple, Inc. MacTech is a registered trademark of Xplain Corporation. AppleCentral, MacNews, Xplain, "The journal of Apple technology", Apple Expo, Explain It, MacDev, MacDev-1, THINK Reference, NetProfessional, MacTech Central, MacTech Domains, MacForge, and the MacTutorMan are trademarks or service marks of Xplain Corp. Sprocket is a registered trademark of eSprocket Corp. Other trademarks and copyrights appearing in this printing or software remain the property of their respective holders.
All contents are Copyright 1984-2010 by Xplain Corporation. All rights reserved. Theme designed by Icreon.