Gallery of pictures

How do I configure the gallery of pictures to liberate to the members of my forum?
It has been days that I am trying and I don't get.
I ask for some help.
My Forum:

http://shakiraintuition.forumotion.com

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I believe you have to purchase points in order to show members your photo gallery. To do this:

1) Go to your administration panel
2) Go to the General admin. section
3) Go to point's mangament
4) Click buy points if you need points.
5) After you have enough points, go to current situation, then click modify.

6) After modify, go to the additional time side, and choose the option you want. For example if you want to display your gallery to members for 1 month it will cost you 100 points. The PRO version will be activated then.

I hope this answers your question.

Thank you very much for the clue!
Hugs and have a good week!