trackitt: My HSMP experience in UK...

Hi Friends,
thanks to your support and valueable information provided over here in Trackitt, I successfully landed here in UK.
I was not having much knowledge and took up the first job that came my way and ended up going to a remote town...I please request any members who have landed here or who know any resource for people who come here in HSMP.. what are the forms we need to fill after landing here... Do we need to pay the NI seperately or will our contractor deduct it from our salary? - how are we to pay the tax - will the salary be given after tax deductions? - what forms to fill for NHS? - do we need to take NI on our own? - any other forms to fill, like registering with the nearest embassy of the country of origin? - where to pay the so called council tax? - I am left perplexed here with no friends and I am just staying in a hotel - its costing so high.. - if there is anyone who had gone through this same situation and have got the information, it would be great to put them down here please...
Also, the offer that I accepted and signed states " I agree to work for XYZ for a period of atleast 12 months with a 1 month notice period" - I am not feeling comfortable in this low paying job and the working conditions are also not good, can I quit the company immediately or do I have to give any notice period? - also would the acceptance to work for atleast 12 months and quitting in 2nd month would cause any legal problem? I am getting good job offers with better pay packages from prime locations now... I am just apprehensive about resigning as I have signed the agreement... I request people who have had similar experience or idea on this subject to share your knowledge...

Thanks and regards,
Sanadana