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The keywords and description for guests and members logged in?

I mean its only useful for SEO so for bots to see, for others us humans it might be a bit unneeded to view?

Only showing it for bots would be cloaking and unwise.

Alright but what about the green background and text? Is it like that on any board with that mod?

There is no green background. Thats only used on the screenshot to highlight it.

alright great,

two more questions though and I'l so going to use this mod:

Works on 3.0.9 of phpbb?

Works smooth with the other known SEO mods of www.phpbb-seo.com like http://www.phpbb-seo.com/en/gym-sitemap ... t2734.html and http://www.phpbb-seo.com/en/phpbb-mod-r ... t4608.html

And: http://www.phpbb.com/customise/db/mod/t ... words_mod/

It works fine on 3.0.9
But I have no idea how its going to work with the mods you have linked to.
However the last one should be fine.