Tier 1 (General) Extension as a Parasol Contractor

[sezgab]

Hi,
I'm applying for an extension in November 2012 and I'm a bit confused to documents to provide.
I am a contractor via Parasol and parasol stated that I'm technically speaking a permanent employee of theirs.
So I can provide:
- bank statements
- payslip that they will validate
- They even said they'll write a letter to state I'm a permanent employee of theirs (i'm drafting a column to include a breakdown of taxable gross income as income not the total income)

Do I still need an accountant letter to state that I am a contractor and a breakdown of taxable gross income? I'm not a salaried employee - i'm a permanent according to theirs but my income per month fluctuates as I'm on a day rate
I'm just concerned that I'm contracting via parasol and stating that I'm a permanent employee - but when they look at my validated payslip it'll show for instance:
-total income 1000
-taxable income 800
-I will claim the taxable income of 800

One one hand I want to make it as simple as possible and just have stuff from Parasol. on other hand I want to give as much information but risk of confusion.

Anyone's applied successfully via parasol? would you let me know what documents you've provided.

& to confirm - I hit my minimum earnings target already so i think I'll submit 11 consecutive months worth of payslips - that's ok isn't it? its within 15 months.

Any advise/help you can provide I'd really appreciate !