Hi Tso Tsi, the idea behind the current range of patches was to restore existing programs, so they are in most cases called patched versions and will need to be applied over your existing version
Those that are from the original programmers are not marked patched and connect to the programmers sites in most cases so you will know when a new version is available or required.
To obtain the originals you need only visit the home sites or our archives to obtain whatever you require.
The host file patch you have was the original type of redirecting fix but the 1.9 has added functions such as blocking many flooders from the network and will not require you to be updating everytime the cache list chances, so we would of course recommend this type of solution, you need not run both.
If your happy with using the host file solution then I suggest you continue using it, along with Sherwood or Peer Guardian2 to block the flooders.
In most cases the patched versions are the last releases of the given product.
I hope that has answered some of your questions.