re those timestamps, I got Leathl to remove those from LibWiiSharp because they were giving me problems (inconsistent hash) when I would use patchIOS on a wad. Leathl has committed this to r5, but the precompiled binary on his google code page is still r4 (aka libwiisharp v0.21). If u want, I'm fairly certain you can continue using libwiisharp as u were before (with a footer) using r5 of libwiisharp. To save yourself hiving to compile r5 of libwiisharp, you can grab a precompiled r5 libwiisharp (built by Leathl) from the most recent release of NUS Auto Downloader. Just download it, then run "NUS Auto Downloader.exe", as it is starting up, it will automatically unpack many files in the background (including the libwiisharp r5), and u can find the files saved in the same folder as "NUS Auto Downloader.exe", just copy and paste it elsewhere (because when you exit NUSAD, it will delete the 'temp' files, including libwiisharp)
and thats great re the common-key! I can't wait to try out your next release!!