chichu - this is a forum for discussing guitar tabs - so yes, it is indeed the right place . Its just that when it comes to writing tabs, you need a good knowledge of guitar fretboard. I do know little, like playing chords on the guitar, but expert guitarists will be able to tell better. With chords I certainly can help.
On deciding the right notes from Audio - it is very difficult if the audio is bad or if theres some really fast runs (like the ennavale adi ennavale - flute run). But with time, you will develop that ability. I can help with notes little bit, but its difficult to be 100% accurate.