Download Problems in Android Apps

Hi there, some Android Apps have problems downloading their needed files. One example is the Jamendo App which is uncapable in downloading any file (im doing it using the browser right now and copy/unpack them by hand using the Terminal). Also the Dictionary App Aedict3 shows some problems, it downloads temporary files and then fails to delete them (and so crashes) due do permission issues. I tried deleting them by hand using the terminal, but even with root i was not able to delete them (some FUSE Problems afaik).