Renewal of Contract Registration

Dear all

ours is manuf. unit. i have not renewed my RC for the yr of 2008. i have some queries please help me with it.

as i do not have any new coming project to put the worker on contract to do the work for another 3 months. i might get the new order after that but till that time i do not have any work to give them.

1) Can i apply for renewal of RC as and when i required to start my work.

2) i have taken a previous year registration for full year but out of that only 5 months thw workers were put on the work. Do i have to take full year Registration

3) if i get the order and i put the application of renewal meanwhile i put the workers on work will it be a offence ?

4)  if i take full year RC ( Jan to DEc ) do i have to give the full year contract work to contractor or i can give whenever there is work ?

please reply me it is urgent

Thanks
Prashant