no options for suckerfish menus

I'm new to Drupal and am trying to setup suckerfish menus in my site.
I followed several sets of instructions on the ThemeSettingsAPI Module Download Site and the Newsflash Theme Download Site and believe I have everything installed correctly. I can enable the ThemeSettingsAPI module and Newflash Theme with no issues, however, when I create a Menu and Menu Item (with the expanded box checked) and then go to Blocks and attempt to select Suckerfish in the drop down menu it isn't even available. Also, I noticed that I only have the option to make basic changes in my Theme Settings (doesn't have an option to enable suckerfish).

It's my guess that for some reason the ThemeSettingsAPI module isn't loading even if the box is checked.

Drupal 6.8 with ThemeSettingsAPI 6.x-1.4 Module and Newsflash Theme (but having same problems with all themes).

I hope I'm in the right place for this question, please help.

Thanks,
Mark