It's heartening to see the interest (and the orders!).

On the Amazon issue, they are a little cheaper, but as Owen said, we'll get the books to you sooner, and you may well get some exciting extras like catalogues, pencils, badges thrown in too!

That said, Amazon orders are fine too, we still get paid for those, eventually.

I have altered the site slightly which should correct the issue with Firefox and Ubuntu, though as we have no Linux machines here I can't say for sure.

Alec