IntegraMOD

I have just downloaded slateb2 and extracted the contents to my templates folder but this style will not show when I try and install this style in extreme styles - install styles nothing is shown there.

Is there something missing with the download

Some themes are not yet fully compliant. They rely on the theme creators upgrading them to suit the changes in phpBB and IM.

it was a typo in slateb/theme_info.cfg
In the first line of code find

$slateb22[0]['template_name'] = "slateb2";

and change it to

$slateb2[0]['template_name'] = "slateb2";