Active styles are not showing

[57Chevy_Jeff]

I'm helping someone create a discussion forum on a new website account. We installed the newest version of phpBB and the Prosilver style is 3.3.13. Using FTP we uploaded styles from the Customise styles database. we found them in the Customise tab of the discussion forum. We installed and activated the styles. Within the Details, we've set the desired style to be the "default" style. However, no matter which of the uploaded styles we've tried, the Prosilver remains the style being seen.

Is there a setting we're missing?

[Steve]

Goto ACP => Board settings =>
Default style:
The default style for new users.

Guest style:
The board style for guests.

Override user style:
Replaces user’s (and guest’s) style with the style as defined under "Default style".

[57Chevy_Jeff]

Thanks Steve, that did it!