> I've installed 1.9.7 too and i followed the instructions posted here:
> http://tikiwiki.org/tiki-index.php?page=wysiwyg
>
> Either way i can't enable it in the wiki admin page.

No idea myself, Gelo. I never tried using wysiwyg in 1.9.x (it's very limited and not compatible with wiki markup in some other pages of the same Tiki site). In 1.10 it seems to be much better... (I'd suggest you to wait for 1.10.0 to be released...., whenever this happens - no idea when)

Cheers

> i have tikiwik 1.9.7 installed, ...

It's only in TikiWiki 1.10 version, not in 1.9.x branch, as documentation says.

You'd better wait until 1.10 is stable enough and thus released as such (not yet)

Cheers.