I see what you mean. You cannot move off the first page.
I have only looked at the program today for a few minutes just to see if it ran okay. At the moment nothing comes to mind unless you have added any additional php, or external (to DH ) fopen() calls, to the file.
I am using these versions just to check.
phpMyEdit version: 5.6
phpMyEdit.class.php core class: 1.188
phpMyEditSetup.php script: 1.48
generating setup script: 1.48
I will have another look in daylight tomorrow
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I am NOT a DreamHost employee OK!! :@
You act on my advice at your own risk!