Zenphoto version 1.2.2 - nightly 2009-01-09 - modified default theme

I use
printLatestImages($number=1, $albumfolder='', $showtitle=false, $showdate=false, $showdesc=false, $desclength=40,$showstatistic='',$width=600,$height=600,$crop=false)
(I left the variables in for clearity)
together with
printImageDesc(true,'',true)

This worked before the nightly install.

After the install the printImageDesc() generates this error:
Fatal error: Call to a member function get() on a non-object in C:\xampp\htdocs\zenphoto\zp-core\template-functions.php on line 951

Any ideas ?