Hi guys. I'm new here. I modified the aldiko apk file to install it in the internal storage rather than external storage. I am now able to install aldiko through the Root Explorer. I attached the modified apk installer for aldiko. Oh, you need to rename the extension to .apk. I named it .avi just to make things easier for me to attach the file. Just inform me if you have any problem with the installer.
edit: the aldiko version that I modified: 2.02