This uptime package consists of two components: 1) A Windows-based client and 2) Some PHP script (along with associated) files.
The Windows client can be installed on any Windows PC (tested on XP only) running as a server and is used to generate the raw uptime data.
The PHP script can be installed on any server that supports PHP (and that can access the data generated by the client) - the most convenient location being on the same Windows PC as the client. The PHP script generates a banner image that can be linked to on forums and other websites.
Please read both the readme files for instructions on how to install and use the two components.