I tried to install all the plug-ins with Europa five minutes ago, and I got no problem with the plug-ins you mentioned.
Here are my suggestions:
Try to update your plug-ins and make sure these two ones are selected in the update site.
When Eclipse starts up, wait few seconds before creating a new project. The wizards for Orchestra and EIP might be slower to be generated.
If your problem is still not solved,
select Software Updates > Manage Configuration,
make sure the Show disable features icon is enabled,
and make a screenshot of the list of installed plug-ins.
Also, check the status of the Orchestra and EIP plug-ins (error overlay icon ?).
This will help me to understand why it does not work.