I think u didnt see the links for the software anyway here it is-
Please also Try these Freeware softwares to lock your folders and files-
1-
FileLockit can lock a whole folder.the app starts in last folder that you was and get the password only at the begin. If you say `no` to access permission only once a time,it will be failed to access to your files for ever.you must install it again. NOTICE: In some nokia phones you must set permissions :"Read user data"&"Write user data" to "Always" or "Always ask" first.you will find it in information section.Otherwise it gives an error:"Access denied".
2-
File ExplorerFileExplorer is a program for managing the files. Current features include hiding/unhiding of folders and files,password protected access to the program and copying and moving files. It also features a slideshow viewer and image viewer
For MobyExplorer please follow the link -
MobyExplorer 3 Download Trial or Purchase hereNote- MobyExplorer is payware.