ps_themecusto module is not working at all for the fresh installation

[hassan1985]

Hi there, 

I just installed a fresh 1.7.6.5, I am very familiar with 1.6 but not with 1.7. The problem is that this "pages customization" is not functioning at all (circle 2 in the attached pic). It seems the module is still loading for ever (circle 1 in the attached pic).

I cannot customize the pages, when put the crosser on the menu or slider or whatever, nothing is changing (circle 3 in the attached pic). 

Please help?