Many thanks to everyone for voting for Truman. The little guy continues to do well, is eating and has put on a little weight (originally 3.3kg now 3.5kg) He seems a little stronger in his hind legs and is jumping on the bed rather than scrambling up it. I think the Fortekor is doing the trick.
I know what you mean, Gillian, I have tried to vote for everyone on Purrs but have lost track. They are all seriously cute.