Other then the obvious Patching and cleaning of server directories and files. You can be needed, especially now, to keep a cliose eye on Anti Virus updates for server and push to users.
Once the company has a Ft admin, they will have TONNES of user PC problems that have always been overlooked or ignored. You can help users with use of email, and other software.
Help the company stay ahead by keeping the network and softwaer up to date and stay informed of new products that will help increase efficiency.
You could build a new website for them. If you have graphics abilities, you can design brochures and faxable information that is LAN stored.
You can be in charge of dropped connectrions, annoying little IPF's, cleaning computers on a regular basis to extend their life, thus maximizing the company's invetsment.
AND SO MUCH MORE!!! Just keep thinking, there's a thousand ways to justify the company needing you, eventually they won't remember how they survived without you!
Good luck with the opportunity, let us know how it turns out!
OM