SA Tax return /Umbrella Company .Help

Kaybeebee1

I am in the process of trying to sort my tax return out for 2010/2011
and am getting more confused by the minute .

I was employed April to November of that financial year and paid in the normal way with PAYE tax deductions then from 6th December 2010 to 18th March I was temping through and agency .They advised me to register as self employed and with a company called Consort Consultancy who I believe are an umbrella company .This I did and got paid gross weekly with Consort sending me a copy invoice (the invoice actually being from me to Consort for my services).I assume Consort then billed the employment agency that got me the job in the first place.

I was told to keep receipts for travel expenses,lunches etc which I have .When I registered self employed I stated Consort as the name of my company (As advised by them ) .

18th March to end of financial year I was back employed under PAYE with a new job and advised HMRC of this.

So getting back to my questions:

Which forms do I complete if I was only part of the year self employed . Is it SA103 S plus SA102?

Do I put Consort as the name of my company on the tax form or my name ? This bit is confusing me but they did tell me to use their name when I registered self employed with HMRC so I guess that's right .I just don't understand why they produce an invoice on my behalf as if it comes from me to them but I am employed by them ?

When calculating the tax is it just a question of adding gross income from all three employments , deduct expenses applicable to the self employed part of it then deduct my allowance (£6475?) , work out tax payable on this amount then deduct amount of PAYE already paid and what's left is what I owe??

Any help or advise would be greatly appreciated .

Thank You.