The EQ Location is normally configured during the Setup when you install EQ Pixie. If you move EQ to a new location you will need to tell EQ Pixie about it. To do this press on the Main Control and select EverQuest Location in the list on the left. You will then see the following controls:
This is where you specify the location of EverQuest's folder. This should be the top level EverQuest folder, not the logfile directory. Pixie will look for EQ in it's default locations and will display it if found. You can use to bring up a window to look for and choose the EQ folder. Here are some typical EverQuest locations:
If you use EQ Pixie with more than one game, for example with EQ1 and EQ2, then you will probably want to switch this path depending on which one you are playing. If you don't then most of Pixie's features won't work with one of them. I have plans for a better solution in the future, but this does work.