I have the same problem - except I can’t install any packages. It seems the zip is not extracted correctly.
I did a test with the TinyMCE package. It downloads ok, and when I try to install only parts of the zip-file is extracted. Then I get the "Package not found". I then tried to extract locally and upload all files in the same directory as the Modx-system would have done, and now I could install it without any problems.
The info requested:
PHP version: 5.3.2
MySQL version: 5.1.48
Server: Apache
OS: WinXP SP3, Mozilla Firefox 3.6.8
PHP Zip ext:
Zip enabled
Extension Version $Id: php_zip.c 294817 2010-02-09 17:51:39Z pajoye $
Zip version 1.9.1
Libzip version 0.9.0
Need any more info, please let me know.
Update:
Modx error log when I tried to install Ditto:
[2010-08-04 03:17:53] (ERROR @ /core/xpdo/compression/xpdozip.class.php : 142) PHP warning: ZipArchive::extractTo() [<a href='ziparchive.extractto'>ziparchive.extractto</a>]: Unable to access /core/packages//ditto-3.0-alpha3/modSnippet/7502ec3d83a5e05269794f1223f941e0/0/ditto/css
[2010-08-04 03:17:53] (ERROR @ /connectors/workspace/packages.php) Could not unpack package /core/packages/ditto-3.0-alpha3.transport.zip to /core/packages/. SIG: ditto-3.0-alpha3
[2010-08-04 03:17:53] (ERROR @ /core/xpdo/compression/xpdozip.class.php : 142) PHP warning: ZipArchive::extractTo() [<a href='ziparchive.extractto'>ziparchive.extractto</a>]: Unable to access /core/packages//ditto-3.0-alpha3/modSnippet/7502ec3d83a5e05269794f1223f941e0/0/ditto/css
[2010-08-04 03:17:53] (ERROR @ /connectors/workspace/packages.php) Could not unpack package /core/packages/ditto-3.0-alpha3.transport.zip to /core/packages/. SIG: ditto-3.0-alpha3