Hi,
2 suggestions.
1.)
untested: If only those may use these function, witch may view the adminlog, put the following line after cpheader("...");
PHP Code:
checklogperms($canviewadminlog,1,"<p>functions restricted.</p>");
2.) implement functions to backup/restore files.
PS: should the readme.txt not contain the information how to integrate the new functions to index.php?