failed to replace errors on install

After the failed install, found this in log:

[2010-03-09 11:43:15] failed to replace in uiconf files Array (    [0] =>    [1] => Fatal error: Call to undefined function:  file_put_contents() in/kalturaCE/install/replace_root.php on line 27 )

[2010-03-09 11:43:15] uiconf replacement output: Failed to repla ce urls in uiconf files

Could somebody point to what is missing? Figure it might be something small...

Dreamhost shared account if that's any help.

Thanks!

-B