No specific info about version 3.20. Please visit the main page of Seashore on Mac Informer.
If there are problems with 0.5.1, eg. crashes at start, then you can downgrade to the latest stable version, 0.1.9 http://sourceforge.net/projects/seashore/files/seashore%20binaries/Seashore%200.1.9/seashore-bin-0.1.9.dmg/download
This program helps you find and remove adware from your Mac.
Free application that checks for the Flashback Trojan.
Create fractals for masks, backgrounds, and textures.
Protect your Mac against malware, adware, spyware and trojan hiding.
It lets you target and block distracting websites so you can be more productive.
If there are problems with 0.5.1, eg. crashes at start, then you can downgrade to the latest stable version, 0.1.9 http://sourceforge.net/projects/seashore/files/seashore%20binaries/Seashore%200.1.9/seashore-bin-0.1.9.dmg/download