How do I add job experience to a resume if I have worked in a specific position, but haven't in a while?

I've worked as a night auditor for a hotel chain, a hostess at a restaurant chain, and I've worked in several retail positions. However, I haven't done those jobs in the last 8 years (I've mainly worked as an administrative assistant and in call centers during that time) and I keep seeing jobs being posted that are in those fields. I say to myself, I know that I can handle those criteria, but my resume can't show all of my experience. I, like many others out there, just need a job. How do I work this out? Do I place that information in my cover letters or what? Please help me someone. Thank you.