I've to fill in my appeals form and would like some tips as to what to include. I've asked my ht for a report. do i include this with the appeals letter, o r state that further reports from x, y and z are available on request
It's not the role of Appeals to request evidence, so it's entirely your responsibility to submit it. If you need more time, then as Tigger says, you can write "Evidence to follow".
An example of a simple letter of appeal can be found here:
non-qualification: http://www.elevenplusexams.co.uk/appeal ... cation#b21
[If places are allocated according to score, it's worth arguing (if appropriate) that an even higher score was expected - provided there is the evidence to support this.]
(scroll down to no. 14)