[imp] enabling icons and flags

[Manou]

hello,
I'm anewbie. I have a problem on seting up IMP: 3.2.5 on Horde: 2.2.5.
Just one question: how can I enable icons and flags in imp?
The rest works perfectly but Icons, flags, bold unread messages, etc 
does not.

I saw this portion in horde/imp/config/conf.php but I don't know how to 
use configure? :-(



/**
  ** Mailbox Settings
  **/

// What should we display for the various message flags/types, and
// what styles should we use for different kinds of flagged messages?
$conf['mailbox']['deleted_flag'] = Horde::img('deleted.gif', 'alt="' . 
_("Deleted") . '"');
$conf['mailbox']['deleted_style'] = 'strike';
$conf['mailbox']['unseen_flag'] = Horde::img('unseen.gif', 'alt="' . 
_("Unread") . '"');
$conf['mailbox']['unseen_style'] = 'b';
$conf['mailbox']['answered_flag'] = Horde::img('answered.gif', 'alt="' . 
_("Answered") . '"');
$conf['mailbox']['answered_style'] = '';
$conf['mailbox']['important_flag'] = Horde::img('important.gif', 'alt="' 
. _("Important") . '"');
$conf['mailbox']['important_style'] = 'i';
$conf['mailbox']['draft_flag'] = Horde::img('draft.gif', 'alt="' . 
_("Draft") . '"');
$conf['mailbox']['draft_style'] = '';
$conf['mailbox']['personal_flag'] = Horde::img('personal.gif', 'alt="' . 
_("Personal") . '"');

Sincerely,

Manou