I can’t help so much with your first issue but with your second issue I think all you are missing is the certificates from RIM required to sign your application. These certificates are now free and you can request them from this site:
Once you have the keys you should be able to add them to your IDE by clicking Blackberry->Sign->install new keys
Then when you wish to deploy your build to your device, right click on your project and select Blackberry->sign with signature tool.
This should let you sign your builds and deploy them onto your handset.