[Need help with Tekkit 1.1.10]

Ok, thanks for your answer weirleader, i will probably wait for tekkit to catch up with 1.6.4, just because i want the other mods aswell in same game.

[Need help with Tekkit 1.1.10]

Hi all i got this problem that i need help with and i hope i can get some good answers.

I want to start a tekkit server for me and my friends, mainly to explore "space" but also other things that we can do in tekkit.

While looking at a youtube video i played tekkit 1.1.10 on singleplayer and realized that "airfan" does not exist on my version of (i think) "Galacticraft", and i got the 1.5.2 version, so what i understand i need to use 1.6.4 version of minecraft and galacticraft to be able to "go to space".

So now to my questions

How do i update my "tekkit-minecraft" version to 1.6.4? a tutorial on this would be very helpful.

Is there anything else i need to update or do to make this work?

I appreciate your answers and your help. Thanks in advance!