I've just installed captch 2.0.1 over CB 1.2 (RC2) with joomla 1.5.7

I got this error
Post-installation Process:

Warning: chmod() [function.chmod]: No such file or directory in /home/myroot/public_html/components/com_comprofiler/plugin/user/plug_cbcaptcha/install.cbcaptcha.php on line 47
/components/com_comprofiler/plugin/user/plug_cbcaptcha Failed to be chmod'd to 755 please do so manually!
Installation finished.
Upload showPlugins - Success

Using my cpanel file manager I can see the .../user/plug_cbcaptcha folder in question and it is 755, like all others in that folder.

When I use the CB plugin managenet I *was* able to enable the captha plugin bu clicking the icon, however when I try to configure it I get the following message

Direct Access to this location is not allowed.

There are some .php, etc files in the .../user/plug_cbcaptcha folder they are all 644 - is this correct... the 4 sub folders are all 755

All help appreciated.