Convert phpbb them to smf ?

[adnan]

Is it possible ?
how ?

[Kindred]

of course it is possible... but not as a "conversion"...   what you would have to do is play around with the *.template.php files in the default theme directory (PLAY WITH COPIES, NOT THE ORIGINALS!)

so, play aroudn with those files and the style.css to duplicate the look that you want.