FfionFlorist |Aww that sounds very sweet, go on give her the job:)
On the issue with being ill I was interviewing someone once, he looked rather pale and ill and uncomfortable. I just said without thinking "you look like your about to shit yourself" he hardly replied and said is their a toilet anywhere said yes out and your right and there's showers there sort it and we'll wait for you .
Which we did, he looked much better seems he'd had a dodgy meal was an excellent man for the job and is still there !
As to the rest. Have some idea why you want the job. Scribble down any questions you might have in case you forget due to nerves, please spell properly in letters, please also dress reasonable smartly, don't be scared to speak, that all goes a long way to creating that very important first impression.
Friend of mine was doing an interview for a well sought after job well paid too had a very good looking, on paper, candidate agreed to a 7PM appointment she didn't even bother to turn up! Said when asked the following day that she couldn't be bothered to go .
Someone who looked less able on paper did and performed well and now has a very rewarding career in front of her:)