Am I doing some thing wrong? I have downloaded it, found it using file manager then can't open it? Please help as have followed this and think this is a great demonstration of the brilliance of the open source that is the n900 and maemo!
open xterm and type: (u will need to have installed rootsh) sudo gainroot go to the folder location through xtern using 'cd'. once you get to the containing folder type: dpkg -i lfocus and press tab on-screen to complete the file name. hit enter to install.