Turning Japanese
As promised, here are your japanese terms for the day:
arigatou (Ah Ree Gah Toe) - Thank you. (normal)
arigatou gozaimasu (Ah Ree Gah Toe Go Zai Mas) - Thank you. (formal)
douitashimashite (Do Ita She Mahsh De) - You're welcome. (normal)
ohayou (sounds like Ohio) Good morning. (informal)
ohayou gozaimasu (Ohio Go Zai Mas) -Good morning.(normal and formal)
konnichi wa (Koh Nee Chee Wah) - Hello. (normal)
konban wa (Kohn Ba Wah) - Good evening. (normal)
sayonara (Sai Oh Na Rah) - Goodbye. (normal)
The difference between Normal and Formal is really dependant on whom you are speaking to. If a co-worker loans me a pen, it's Arigato. If the CEO loans me a pen, it's obviously more formal adding the Gozaimasu (Go Zai Mas). And if it's the CEO, you'll probably want to bow as well 
Ajay, am I getting this right?
September 12th, 2008 - 16:40
Yes, for the most part
“sayonara” is good bye for now – Something that you say to a person whom you don’t expect to see for a while.
“ja mata” is a normal day to day good bye.
Disclaimer: I left learning Japanese a while back, so may be completely off here.
Are you in touch with Fabian Sensei ?