1.People can't register to my site because there is no captcha, (image generator with words and numbers) why is that?
Seems that there might be some settings wrong in the admin area.
For the moment, just disable CAPTCHA.
Goto
Admin ->Members Block -> Registration -> Settings Tab
Find "Complexity of visual verification image:"
and set to disabled
2.I selected a theme, but when ever I go to see a topic I submitted, it goes back to one of my old themes.
Few things could be causing this
1st. Just goto
Admin->Configuration Block->Themes and Layout
Find "Reset everyone to:" and select the theme you want
and also "Overall forum default:" and select the same theme
2nd goto
Admin->Forum Block->Boards
On the board that is giving you trouble, click on modify
halfway down the page you will find "Board Theme"
set to "overall board theme"
hope this helps
