[news.eclipse.webtools] Problems with Plugin

[alex.staveley@xxxxxxxxxx (breako )]

Hi,
I am using Eclipse Ganymede to write a simple plug-in.

My plug-in project uses the template: 'plug-in with sample help content'.

I test it using the "Launch an Eclipse application" in the testing section 
of the overview tab of the project. All Ok. It works as expected.  I can 
see the new items in the help menu.

I then export the plug-in using the links in the export section, on the 
overview tab in the plug-in development perspective.  This results in a 
jar file created for plug-in with all the files in the jar file.

However, when I try to use this plug in any other eclipse instances, I run 
into problems. 

I selecte help / software updates / available software / Add site / 
Archive / Select the jar and I get:

No repository found at jar:files:D:\plugins\my.plugin.help_1.0.0.jar!/

and then:

See details for more information.

I click on details an dI just get the same error message.

This makes no sense to me. Would really appreciate some help. I have tried 
using the -clean option makes no difference.  The jar file looks ok, it's 
not corrupted I can open it with winzip and all ok.

Any help, greatly appreciated.

Thanks.