Want to know if I will loose any data, such as emails and contact when I
upgrade.
Upgrading from Office X to Office 2004 will not result in loss of data. Your
Office applications are not upgraded. The installer will create a new folder
for Office 2008 applications. Your Entourage Identity will have to be
upgraded also.
See this page for help installing.
<
http://www.entourage.mvps.org/install/install_office2008.html>
When you launch Entourage 2008 for the first time you have the option to
import your Entourage X Identity. This has proved problematic for many
Entourage X users. Do NOT delete Office X when you install. You will need to
be able to open Entourage X in order to manually move over your data.
How to manually move your data. (when import fails and/or you need to move
to a new Identity same version or revert to an older version)
<
http://www.entourage.mvps.org/install/manual_install.html>