Found a place for cheap pcb manufacturing

Hello folks
I'm starting making my own pcb and today I finished my board on eagle.I had choose the ITEAD to get my first pcb but now I need to generate the gerber files to seendto then.
They need this:
Top layer: pcbname.GTL
Bottom layer: pcbname.GBL
Solder Stop Mask top: pcbname.GTS
Solder Stop Mask Bottom pcbname.GBS
Silk Top: pcbname.GTO
Silk Bottom pcbname.GBO
NC Drill: pcbname.TXT

Any help you can I generate this files from eagle to this specific manufacter?
My board have 2 layers