Attachment point problem

[Pitakebab]

So I want to attach this eggsack http://www.wc3sear.ch/index.php?p=Models&ID=3918&sid= to this Alien Queen http://www.wc3sear.ch/index.php?p=Models&ID=3892&sid=. I have tried rear and chest with trigger and ability but that doesn't work so anyone have idea where it should be attached to?

 

[Wolverabid]

Attachment Tutorials

The SuperSecretSearchSystem can answer many questions about attachment points, for example:

How to: Attach a Model or an Effect to a Unit
Attachments (without triggers)

Here is another fine tutorial located at a different site.