Check-in to Your Profile > Select the 757-200 Base Pack (FSX) > Extended Download Service > Get New Links

The new links will be the full 757-200 Base Pack version 4.6 (csp751_4600.exe). If you also own the 757-300 and Freighter Expansion models, you will need version 4.6 of those as well.

Do not delete your 4.4 installation files (csp751_4400.exe, csx753_4400.exe & csx754_4400.exe), just in case you have problem with v4.6.

Mark