You will need to know where the hand history files were saved when you extract them from the .rar file. They will either be in a subfolder of where you saved the .rar file, or you would have been asked where to save them.
Use Manual Import
to import the extracted files.
For your WSEX issue, are you seeing a translucent white box over the whole table/lobby?
Do you use Logitech SetPoint software? If so, update to the latest version and it should fix it.
Otherwise, please describe exactly what you see.