Wow, that is crazy! Looks nice though...
Re the liners, I wasn't planning on using these as liners per se, more as Mark suggested so I can use them to scoop out the, urm, solid leavings quickly. In my experience they tend to rip and tear when the kittys scratch about, so they're not ideal really. The lady gave me two full packs of liners, i rekon she found the same!
Milly's Mum, one of the cats we were hoping to foster has actually been taken, so waiting to hear from the pther one and fingers crossed we'll hear from them soon!