mangelo123,
1. Can you please share with us the link to the thread if you referring to a previous issue about WAS 8 deployment ? If you can give us more information about the deployment mode and the steps you followed, it will help us investigate the issue better.
2. JRebel for MyEclipse is made especially for MyEclipse IDE users, which features a custom config wizard and help you start killing redeploys fast! JRebel lets you see code changes instantly, by versioning classes and resources individually, then updating them one at a time instead of as a lump application redeploy. When developers make a change to any class or resource in their IDE, the change is immediately reflected in the deployed application, skipping the build and redeploy phases.
You can give it a try. Here are the tutorials for the same :
http://zeroturnaround.com/software/jrebel/download/using-jrebel-with-myeclipse/#!/
Let us know if you see any issues.