Urgent H1B Question

[babbu]

I am going f or H1B stamping for the first time at Delhi. I got I-797 A document . I am not sure if this is correct or not i.e. I-797 A or I-797B. Can any one please help me in this. This is very urgent my stamping is on Monday 23/03/2008.

If I got the Wrong document what should I do. Please HELP!!!!

[infoway]

You have the right document.