I just install Vista Ultimate and it dont have aero and glass i dont know why that is?

i just install Microsoft Vista Ultimate from my pc,
Grapic Adapter: Standard
RAM:504MB
inter(R) Celeron(R) CPU 2.80GHz
but it dont have aero and glass, can i download a Grapic card if i dont have the right adapter for aero and glass? because i really dont want to pay for it im poor guy only 15, WHAT DO I, DONT WANT TO PAY FOR A GRAPIC ADAPTER, can u get a advance grapic adapter so i can down fro my vista ulitmate SOME PLEASE TELL ME WAT TO DO? PLEASE

Thank you eaery much

My Name Is:Rimzykid…:D…;)