cant download aki 1.5.1

1.5.1 is the version of package itself - not version of individual files inside package. Launcher.exe is the same for SPT-AKI 1.0.0 and SPT-AKI 1.5.1 - not all files are changes when new package is released

Do you understand the difference between package with multiple different files inside and individual files?

1.5.1 is a version of the package containing:

- Launcher

- Server

- Module dlls

- database files

Each individual file inside package has it's own file version which does not matter. It is a combination of all files together in one package what makes it SPT-AKI 1.5.1, but not versions of each individual files inside package

That number doesn't matter. If you downloaded 1.5.1 you have 1.5.1.

Mine also says 1.0.0.

Stop looking at that number.

No, 1.5.1 was the last version before EFT 12.11 and does not contain neither Factory Expansion nor Tagilla - you'll need to wait for SPT-AKI 2.0 release for Factory Expansion and Tagilla