Regarding the chinese UI (Item 1), I can confirm a problem with the 188.8.131.52 stable installer with regards to Chinese localization. I have not found a solution yet which will enable me to create a new installer resolving this issue, but I can offer the following instructions on how to enable the Chinese localization post-install:
After restart, the studio should run localized. If it doesn't make sure the the -nl zh option appears in Tersus.ini (or on the command line used to launch the studio).
Regarding the localized samples.zip, I could find no problem there, and successfully imported (via File > Import > General > Existing Projects into Workspace), opened and run some of the localized samples (as well as the sample projects installed by default). I wonder whether the problem you encountered might be linked to a specific Windows version/configuration - I tested with Win 7, can you try a different version/configuration?
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