Pratik Anand wrote: I had this query when I wanted Open Office 3 on older Ubuntus. what I found out was that the dependent libraries used to run the latest packages are not updated in older distros due to compatibility issues. Why are they not able to make older distros compatible to newer libraries is for the Ubuntu developers to answer. Anyway, that is the reason you will be stuck with older packages in the official repositories. IMHO, there are 2 ways to run a software package. The slim and trim way is to use system shared common library files that the package as well as other packages are dependent on. The other way is to bundle the dependent libraries for a particular package along with that package itself. This adds to the bulk of the system. What you don't get through the official Ubuntu repos is the latest updates for system shared library files. What you get in the Firefox tarball is a fully functional package with its dependent files included and this collection is quite OS independent. May I add here that I have found GUIs of apt-get quite lacking in accuracy of listing packages, compared to the results you get in command line. I recently worked with Kubuntu 9.04 on my system and Ubuntu 9.04 for a client on his system. I found that synaptic was quite accurate in listing packages in Kubuntu but in Ubuntu it would not show packages in the list, though they are installed afterwards through command line. For firefox 3.5 I do remember seeing a package in the 9.04 repo and I had installed it. ( I am now back to Lenny after a disastrous direct upgrade to 9.10 ). Run 'sudo apt-cache search Firefox' in command line and go through the results. Your original post does not mention that you googled and installed KDE 4.3. It was mentioned that you were stuck with buggy KDE 4.2.2. -- Regards, Rony. GNU/Linux ! No Viruses No Spyware Only Freedom.