Epidermis theme Manager - Change the Look and Feel of Ubuntu

Epidermis theme manager is an open source GTK application for managing, automatically downloading and installing themes of various types, in order to transform the look of your Ubuntu desktop, from the moment you turn it on until the moment you turn it off.

Download epidermis deb package from this page and install it.

How to Create PDF Files from Web page in Ubuntu with Html2Pdf

html2pdf is an open source program whose function is to create PDF documents from a web page.
To create a PDF just have to enter the website address or specify an HTML file. Then choose the file name and location. We can also configure if you want the background images, resolution, orientation and size of the paper. Its interface is very simple and intuitive and it is very fast .

Download deb the File from here

now open a terminal and installl using dpkg
$sudo dpkg -i packagename

How to Install Virtual box 3.2.10 in Ubuntu 10.10

VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use. Not only is VirtualBox an extremely feature rich, high performance product for enterprise customers, it is also the only professional solution that is freely available as Open Source Software under the terms of the GNU General Public License (GPL). See "About VirtualBox" for an introduction.

Presently, VirtualBox runs on Windows, Linux, Macintosh and OpenSolaris hosts and supports a large number of guest operating systems including but not limited to Windows (NT 4.0, 2000, XP, Server 2003, Vista, Windows 7), DOS/Windows 3.x, Linux (2.4 and 2.6), Solaris and OpenSolaris, and OpenBSD.

Oracle released VirtualBox 3.2.10 , a maintenance release of VirtualBox 3.2 which improves stability and fixes regressions. See the ChangeLog for details.

How to Install Virtual Box in Ubuntu 10.10 Maverick

Open a terminal and enter the following command to add the PPA

$sudo add-apt-repository "deb http://download.virtualbox.org/virtualbox/debian maverick non-free"

Now add the Verification Key

$ wget –q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc -O- | sudo apt-key add -

Now Update
$ sudo apt-get update

Install New Version

$ sudo apt-get install virtualbox-3.2