error installing wicket plugin on netbeans 6.8

[katlego]

Hi

I've installed Netbeans 6.8 after this i wanted to install the Wicket Plugin, but the installation of Plugin "Wicket Support" failed with the message:

Some plugins require plugin Editor Library to be installed.
The plugin Editor Library is requested in version >= 2.10.2.10.2 but only 1.44.1.9.2 was found. The following plugin is affected:       Wicket Support
Some plugins require plugin Utilities API to be installed.
The plugin Utilities API is requested in version >= 8.0 but only 7.31.1.1 was found. The following plugin is affected:       Wicket Support
Some plugins require plugin org.openide.util.lookup to be installed.
The plugin org.openide.util.lookup is requested in version 8.0. The following plugin is affected:       Wicket Support
Some plugins require plugin org.openide.util.lookup to be installed.

Please help