Tree: Memory_DBSimple sample warnings/errors

Hi, I get errors when I run the Memory_DBSimple.php example: Warning: Invalid argument supplied for foreach() in c:\php\pear\Tree\Memory.php on line 1283 I tried downloading the CVS version of Memory.php, but got the same results. I got rid of these warnings modifying the code as follows: // if $node is an array, we assume it is a collection of elements if( !is_array($node) ) $nodes = $this->getNode($node); // if $node==0 then the entire tree is retreived else $nodes = $node; (added the else $nodes = $node line on line 1271). I hope I'm not breaking anything. The example runs then nicely dumping the info until a fatal error arises: Fatal error: Call to undefined function: haschildren() in c:\php\pear\Tree\Memory\DBsimple.php on line 221 When I try to upgrade the package, it says I'm ok: C:\WINNT\system32>pear upgrade tree downloading Tree-0.2.4.tgz ... ...done: 48,824 bytes upgrade to a newer version (0.2.4 is not newer than 0.2.4) Please advise... -- Daniel