I'm new to the forum so go easy on me

Anyways, my story is that I reapplied for my wife's visa for the 2nd time back in November 2008 and was told it had been refused in December (again). I then appealed and got my reply today that it was going to an appeal hearing which will be taking place in August!!
Now my problem is that I probably won't be able to make it on the given date because there are already some people off at work, so, does anyone have any experience with changing a hearing date? I know that I have to write to them, but what sort of things do I need to include in it apart from the reason? How soon after do you hear from them when you've sent the letter off?
I'm just a bit worried also that the bundle which arrived today said that the person who had been dealing with it, saw no reason to overturn the original decision of the ECO

Whilst I'm here, does anyone have any experience with cold ECO's who just seem to convey no sympathy/expression whatsoever?
Sorry, I know that I've asked quite a few questions, but I'm so worried. I've not seen my wife in a while and I just hope that I don't have to wait another year
