1) Training Tracks no longer have this feature. It became difficult to keep after flight models changed.
2) You need the intermediate patches in this order:
4.08, 4.09, 4.09 skinpack (replaces some old default skins with better ones) and finally 4.10. A bug-fix patch, 4.101 is due for release soonish.
You can still get the patches at Mission4Today (others are apparently corrupt). You must register to be able to download:
4.08:
http://mission4today.com/index.php?n...etails&id=1908
4.09 Guide:
http://mission4today.com/index.php?n...etails&id=3742
4.09:
http://mission4today.com/index.php?n...etails&id=3764
4.09 (Russian):
http://mission4today.com/index.php?n...etails&id=3763
4.09 skin-pack:
http://mission4today.com/index.php?n...etails&id=3761
4.10 Guide:
http://mission4today.com/index.php?n...etails&id=3996
4.10:
http://mission4today.com/index.php?n...etails&id=3993
4.10 (Russian):
http://mission4today.com/index.php?n...etails&id=3994