After update 4.4 there is no Android directory. Thats why I guess I cannot install android apps. Phone xperia 10 II.
How do you know that there is no android directory?
If this is because the folder does not appear in the filebrowser of ichtyosaurus, then this is because of the permissions the filebrowser has to see folders, not because it is not there.
You can check via the terminal if it is there.
You can also start the file browser from the terminal, than you can see all folders