I've been trying to add the Andorid4 asset but i get this...

Failed to install 'Android4' asset

Reason: Failed to download Android4.zip

further reading on the website shows that i apparently need wireframesketcher 3.5.0...

I've also tried to add a Asset folder to my project but nothing shows up on my palette

anyone have the old version? or a fix?

There could be an issue with network connection. Are you behind a proxy? You can configure proxy settings for WireframeSketcher using Window > Preferences > General > Network Connections.

To help you more I need your log file. Email it to me using Window > Preferences > WireframeSketcher > Report a Bug.