project transport requests

hi All,\

I am having a problem, when i try to create a new program , i am prompted for a transport request, but apparently when i try to create a new request, it does nt come up with request number, but i realise that i have to assign me request to a project, when i try to assign my request to a project, it gives me a authorization error, cud someone guide what does project mean in transport requests and how can i create my own and y cant i chose an existing one???

thanks,

Gaurav