On December 1, 2010, EverQuest will be switching over to the LaunchPad 3 version of the download client. The older versions will no longer work to download and patch EverQuest.
In order to help with this transition, please share your feedback about any issues that you currently experience with LaunchPad 3. LaunchPad 3 can be accessed through this link.
Note: LaunchPad 3 is not the same as Station Launcher.
The above quote is from this thread on the SOE forums.
Note: Station Launcher is separate from LaunchPad and should continue working.
The launchpad upgrade will likely not happen until January..
- Steven S. Klug, EverQuest Lead Programmer