The English Translation Patch for PSO will not work on the Open Beta. However, they do use the same client, and if you have the closed beta loader you can use it to update to the open beta release.
A possible solution is being worked on for the translation but there is currently no ETA.
We have continued to leave cheating / Hacking information in the same page of the translators as the game is in beta stages still. When there is a final release the PSO 2 section will be cleaned up and subsidized.