Sorry for responding approx 2 years late
Just for the record: when you type ss[13] , "13" is the HS device. A HS device has a house-code and device-code, example: A13 or '13
You could try running it without the date option. Besides that your parameters look good.
Did you try the latest version? (see URL in footer, scripts / Twitter)
I-1
Yes, by adding "prowl" instead of nothing you can send a push notification instead of a tweet.
Cheers
DJ