Wikipedia has a nice Naruto Shippuden episode guide up that included the English and Japanese episode titles, as well as the original airdates of each episode. Looks like it is constantly updated to include known future airings as well.
This is a list of all 220 episodes of the orginal Naruto series:
Begining Episodes
1: Uzumaki Naruto Arrives!
2: I Am Konohamaru
3: Rivals! Sasuke and Sakura
4: The Trial! Survival Training
5: Failure? Kakashi’s conclusion
Country of the Wave
6: Important mission! Heading to the Country of the Wave
7: The Assassin of the Mist!
8: Decision sworn on pain
9: Sharingan Kakashi
10: The [...]