Installing dimdim 4.5 on Centos 5.4 x86_64

Dimdim is a web meeting software. From http://www.dimdim.com/products/what_is_dimdim.html: "Dimdim lets anyone deliver synchronized live presentations, whiteboards and web pages and share their voice and video over the Internet - with no download required".

There are few versions of dimdim, and the one we are going to install is the open source edition.
The steps are:

1. Download dimdim rpm from here
You have to provide email, first name and last name before you can download.
2. Once downloaded, unzip the file (Dimdim_RPM_Package_CentOS_5.2_v4.5.zip) and you can find one dimdim rpm file for Centos 5.2, one readme file, one web meeting user guide and one web meeting server integration guide.
# unzip Dimdim_RPM_Package_CentOS_5.2_v4.5.zip
3. Follow the installation guide in the Dimdim_SF_CentOS5.2_RPM_Readme_v4.5.txt file. After finish with all the pre-requisite check, proceed to installation process.
4. If you have error stating that you have failure in OS check, change your /etc/issue from 5.4 to 5.2
# sed -i 's/5.4/5.2/' /etc/issue
5. If you got an error in missing libpcre, install pcre
# yum install pcre
6. Once installed, open your browser and point your browser to http://localhost/dimdim
7. Start meeting using your newly installed dimdim :)