Thanks Josh,
Yea I had skipped php installation. However after installation I cant upload the dictionary. My dictionary was created in version7.0. Could that affect. The Error I get is Failed to add dictionary. We are sorry, but something went terribly wrong.
Dictionaries from version 7.0 should be fine. Look in the log files (files/ui.log and files/api.log) to see if there are any errors there that might explain the problem.
Also please make sure to use the most recent CSWeb. We recently fixed an issue with dictionary uploads.