thanks for all the links here, good luck finding something for your 7yr old. i read good reviews on one, i think bedwetter one saying that the child was so relieved to be able to be more responsible as they could pull up by themselves and no longer felt bad about mums linen washing load. a relief all round for child and mum.
will bear all this in mind for my boys as i resorted back to sposies at night but may just be converted too. i have a stash upstairs of general cloth and may be able to cobble something together but if not, will be following with interest - let us know how you get on x