Way to go with the attack KmH. Maybe you should read the k200's user manual yourself and apologise to skittle. The k200 uses AAs. Page 39 of the manual says you can use AA Lithium, AA Ni-MH, or AA Alkaline batteries with no mention of brand.
Dick Smith only sells standard off the shelf AA batteries so it doesn't sound like it's possible that any choice of AA batteries of Dick Smith could have fried the camera, nor does the manual say anything about limited liability given that the k200 uses off the shelf batteries so warranty wouldn't be void.
Skittle can you confirm with a different set of batteries that it's the camera at fault and you haven't simply got a set of dud batteries? If you can't get it going do a warranty claim on it.