f-1 opt -> h-1B; 1040nr-ez, 540nr, tax treaty
I was on f-1 opt from 1/1/2008 - 10/1/2008 at which date my h1-B status became valid. It is still less than 5 years since I have been in the us. My questions are:
1) am I correct in asuming that I can to file 1040nr-ez, 540nr(short) and 8843 for 2008?
2) also, can I still claim $5000 from my wages exempt from taxes (under us-pakistan tax treaty) even though I was not a full-time student throughout 2008 but was working for a us company?
3) I have been filing 1040nr-ez in previous years too except 2007 where I erroneously filed 1040 and am filing amendment. After I file the amendment for last years error, do I list 1040 or 1040nr as the form used in 2007's taxes in the space on 2008's 1040nr-ez?
Thanks,