Hey, thanks for all the replies!
The amount of times I have thought 'seriously, I am not an idiot' this term is staggering. I was teaching (in another school) before I took this job and I think they are using this to try and annoy me... teachers, and all that!
I have documented everything since week 4 of this term, sent the SMT the relevant info along with links proving that what they have stated is nonsense.
As for the contract, i'm hopeful we can remove these fools and i'll gladly say who they are once this is resolved. I have already had a quote for a Ruckus system to replace the 54g Netgear Access Points they installed prior to me taking this job (they are the latest technology! It can easily support your requirements!) and the company that has provided this quote is much better. The odd thing with the current company is that they are reasonably large and presumably can't be this awful all the time? I've now dealt with four employees and the boss and they are all full of nonsense. The '£5k but there's no guarantee it will work' came directly from the boss!
I am getting masses of work done in this job, the IT company have set hours each week and i'm able to do 90% of the work, leaving them with easy tasks to do each week- but no danger of contract reduction as there are 'insurance purposes' things to do. The only problems that arise are from their work- which fortunately is being noticed on a regular basis, as is my work in driving the ICT department forwards in terms of software and usage.
More awesomeness:
Teacher- I cannot access the teacher drive
Company- Well the solution is to reformat your PC, it'll take at least a week
'Could you plug your iPads into the ethernet?'
'Ah, the whiteboard has a USB B connection, your PC has a USB A- you'll need to replace the whiteboard'