Hi Eric
Views 1.5 should be used with Types 1.5.3, so if you are using Types 1.5.3 with Views 1.3.0.3 I'm sure that some things will not work as expected.
Also, we tested Views 1.5 against multiple WordPress versions, and it seemed to be working fine with 3.6. Maybe there is something specific to your installation. Is updating to WordPress 3.8 out of the table?
I would need to know what does "nothing works" mean. Can you edit Views or get to the admin screens? The Views shortcodes stopped working? If you could give me more details I'm sure I will be able to help you.
Regards,
Juan de Paco