How or where can I learn how to play Tekkit?

I'm talking about the newer Tekkit minecraft mod pack. I see a lot of people playing Tekkit and I only know the basics. I'm wondering how I can learn how to do all the stuff in Tekkit. I think there's the wiki but I'm not sure it will help very much. So where or how can I learn the advanced parts of Tekkit.

Well, I don't know if would would appreciate this but,

Is it useful to you?

I couldn't find one on tekkitwiki.com but I did find a guide for you on tekkitclassic.wikia.com:
http://tekkitclassic.wikia.com/wiki/Getting_Started

Though it might not be for the newer tekkit, it will (probably) still help a good amount, as tekkit shares many things with tekkit classic. If you are interested in doing single player tekkit, I would recommend you do technic instead, as tekkit is technic except with a bunch of things removed for compatibility.

If the tekkit classic guide isn't what you are looking for, go to the wiki that you like to use for tekkit and search "getting started" in the toolbar.

For the more advanced (sort of) walkthroughs, watch Yogscast Duncan's lets play of tekkit (it is outdated but still mostly accurate)
Here is the first episode of it:

If it is too simple/outdated for you, try skipping a bunch of episodes to get to the more advanced/to date parts.

Hope I've been of some kind of help!