I been trying to plan my trip around the usa and even looking at the hostels there expensive ok 30 to 40 usd a day ok for one or 2 nights but im planning to travel for 2 to 3 months and staying at a hostel for 2 weeks in ny say will cost a bomb.
So is there any other cheaper way i can do it any help would be great.
There are cheaper hostels that aren't in the hostel organisation. Check outhttp://www.hostelhandbook.com/default.htm for a complete list. It's still going to be expensive to stay for a long time, though. NYC and other large cities are more expensive than smaller places.
You should be able to get cheaper beds than that in a dorm room, even in New York! Have you done a search using the form at the top of the New York hostels page here on TP (you can use the 'cheap accommodation' link on the left hand side of every page)? It will automatically show all the hostels with availability and you can then sort by price. Should give you a good idea of how cheap it can get...