There is an analogue of AppStore, just free. From there you can install any program without connecting the hacked iPhone to your computer without iTunes.
To do this, your phone must be Dzheylbreknut and must have program Cydia. Open Cydia and add the source: http://cydia.hackulo.us

After installing an updated version of iTunes 8, which works properly before this iPhone PC Suite refused to boot, giving the error. The same fate befell and iPhoneBrowser. We had to look for a replacement. The choice really is not great. I understand that at this point only DiskAid works with the latest iTunes.
Here is a brief about it. DiskAid is absolutely free and easy to [...]

Saurik, the developer of Cydia, Cycorder, and many others who have successfully moved the old MobileFinder version 1.1.4 to firmware 2.0 and above. A similar MobileFinder in AppStore can also work with files, but does not have access to the root, in consequence of which is not in a position to harm the file system iphone. Thus, this program is a full-fledged file manager [...]