Hi Steve:

After a long break from FS, you're restarting w/ FSX...welcome back and I'm sure it will be an exciting time selecting your FSX aircraft! Hope you go for your favorites built from scratch on the FSX platform (taking advantage of all the FSX nuances)....

Regarding CS 757, the latest/last available official version is 4.6. Some users have stuck w/ 4.4. It really does not matter for you since you are starting fresh on FSX. The official word is that a payware 5.0 757 will be released after CS 777 and 737 releases. Whether to purchase now or wait is your decision...I would prefer not to influence your decision. You can read about 757 4.6 Feedback in the Thread below (and other related threads). Have fun w/ FSX.

http://www.captainsim.org/yabb2/YaBB.pl?num=1320279038