This bug has been corrected in E-Prime 2.0 (220.127.116.113).
While editing in an InLine object, the User or Full tab of E-Studio's Script window, or the PackageFile Editor program, you can search for any phrase or character by simply pressing CTRL+F to open the Find and Replace dialog box. This dialog box has been updated for the E-Prime 2.0 Production Release (version 18.104.22.168) to include a property called "Look in". This property specifies where E-Prime should search for the requested phrase.
The Professional edition includes the "All Script Windows" setting, which should search all of the script in the experiment or PackageFile Editor for the requested phrase. However, if you are using the E-Prime 2.0 Production Release, this function will actually open the next InLine object or script window only and will not search for the requested phrase. This has been corrected in E-Prime 2.0 SP1 (version 22.214.171.1243)
This bug is still active when using the PackageFile Editor program to edit a non-certified package file (see BUG FIX: Find/Replace All Script Windows option is not working when using the PackageFile editor on non-certified package files ). Editing certified PackageFiles in the PackageFile Editor works as documented.