pun_include problems after upgrading to 1.2.15

Hum I have a problem since I updated my forums to 1.2.15 , the pun_include function no more works

I have this in the telmplate :

template/main.tpl:
   <table  summary="annoucement and active topics"><tr><td style=" WIDTH: 67%;"><pun_announcement></td><td><pun_include "ajaxextern.php"></td></tr></table>

and the file is no more included with 1.2.15 patch, which includes changes to the functions managing pun_include.

the pun_included file is not include ( not found ) and the

<td><pun_include "ajaxextern.php"></td>

appears on the final webpage source code.

does anyone here use pun_include and have same kind of problem ?
I hesitate on reporting a bug, could be a problem of my integration of the patch
( see http://trac.ww7.be/trac.ww7.be/changeset/26 )
perhaps my path of my modded version have errors but I think I integrated 1.2.15 patches well . . .

any advice welcome I cant find why this pun_include no more works and how to fix it ;(

if you want to investigate you can get my modded version here : http://ww7.be/neofutur/tools/punbb/MyBe … .20.tar.gz