Congrates for selection!!
You can get admission in old IITs .. you may not get the branch of your choice in IIT dellhi , bombay and kanpur .. but u ll surely get a good branch in old IIT..
Click the link below link for opening and closing rank of IIT :
Cutoff in new IITs check the link give below :
http://jee.iitd.ac.in/openclose09.htm (this link includes the more detail analysis)
for code of the cources check the councelling broucher 2009.
All the best