How To Add InApp Purchase To existing application in j2me

Hi,
I have uploaded one application into nokia ovi store ,now i have to add inapp purchase to that
application but i dont have any idea about this one.I have read the paymaent api of nokia
still i am not getting clarity ..Plz can anyone help me how to start this one.

Thanks in advance.

See this link : [URL="http://www.google.co.in/url?sa=t&rct=j&q=in%20app%20purchase%20nokia%20java&source=web&cd=2&ved=0CCwQFjAB&url=http%3A%2F%2Fprojects.developer.nokia.com%2Fiap%2Ffiles%2Fdoc%2FInAppPurchase_QuickStartForJava.pdf&ei=MycNT4LhC4LkrAel1u3DBA&usg=AFQjCNF4uwNXLdOcxtkSFJHKr-Y0-wu6Zg"]In app purchase j2me[/URL]

regards,
rahul

thanks rahul i vl look iinto that.