Request for 89C51 Program

Hello frenz.. I am in need of some website for some tutorial regarding how to program an 89C51 IC. Note : I am just a beginner.So i need in detail right from basic. Thanks in advance.
Interrupt handling for 89C51

In the manual , example code written intrrupt is : void example(void) interrupt 1 using 2 { ..... ..... } Can someone tell me what is meant by " using 2" there? thanks
software uart for 89c51

i got this code from a site, but i cant assemble it in keil which assembler whould i use?? or is there some fault with the code itself?? the '*' are giving some problem "djnz r1,*" for instance...
usb programmer for 89c51

i want to purchase or made a usb programmer for 89c51 or 89c2051 because I have no parallel port in my computer. sir please either send me the circuit diagram or method of purchasing this burner
usb programmer for 89c51

i want to purchase or made a usb programmer for 89c51 or 89c2051 because I have no parallel port in my computer. sir please either send me the circuit diagram or method of purchasing this burner