Relisys RDC1000 digital camera

I recently bought a Relisys RDC 1000 digital camera. As it was from a Garden fete on the bric a brac stall and cost me all of 50 pence it obviuosl;y did not come with an instruction manual. It seems to work well for its specification, but there are a number of features that are not explained, and we cannot find out how to access them. Mostly there are downloadable handbooks available, but I do not seeem to be able to find one for this camera. Can anyone help?