HELP! Arduino Wireless Uploading Via Xbee

i am use using arduino pro mini and a pair of xbee pro s1. is there any way i can upload a program into arduino via xbee (wireless).
i have tried many websites like
http://john.crouchley.com/blog/archives/750
http://www.ladyada.net/make/xbee/arduino.html
Let's Make Robots - RobotShop Community i followed closely but nothing seems to work. help!