Garmin Nuvi 200 Is Totally Fudged?

when i turn my nuvi 200 on, it goes through the process, “loading maps” and then asks me to confirm the agreement. A new message is displayed “no detailed maps found that support routing. the nuvi cannot be used without them”
i got the Satnav unit for christmas 2007 whitch came with no cd. i looked on the garmin website and they want £60 to “update the maps”.
i just want my maps back? can anyone help?