Go to HTTP Proxy Injector, click help, click about. if it's 1.0.1.7 it's the latest version. baka incompatible files lang yung mga na download mong .hpi files.
close the application first, then the ways to import hpi. is put the downloaded .hpi files in "Documents\A-Developer1412\HTTP Proxy Injector\Configs" folder. Open the application and you'll see a drop-down list like this .
or in the application click File>import and locate the .hpi file.