OK, I can see two problems here.
First, the installer runs automatically, if required, when you try to launch the application. You can't run it manually, it won't work. You have to double click the main executable (Akeeba eXtract Wizard) in the root of the extracted files' directory structure.
Important! You will be presented with an option about where to install the Titanium runtime. The rest of my post assumes that you installed it in your home directory.
After the installer finishes up, it will have Titanium installed inside the ~/.titanium/runtime directory. This is where the files referenced in the documentation will be. After deleting them, eXtract will work.
That said, if you try to extract large archives you might end up with a spectacular crash. It's because Titanium has a huge memory leak bug in its PHP integration. If that happens, you're better off installing WINE and using Akeeba eXtract Wizard 3.1. As I said in another thread, writing cross-platform applications is a bitch. Making them reliable is just impossible :(
Nicholas K. Dionysopoulos
Lead Developer and Director
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