Hello Marco,
Sorry for late reply to this,
I have tried to access in your Easyblog homepage, but it seems like your memory size it not enough, because i getting this error
"Fatal error: Allowed memory size of 96468992 bytes exhausted (tried to allocate 64 bytes)", can you contact with your web hosting provider request them help you increase your site memory size to 128M?
Also I have help you removed that "script" & "iframe" from your registered group > text filter (
http://screencast.com/t/zjR9SNic )
And added this
"script[type|src],iframe[src|style|width|height|scrolling|marginwidth|marginheight|frameborder]," from your JCE component (
http://screencast.com/t/OwkCdnjwrP1B )
If above i help you made it doesn't help much you, please refer back to us.