flex builder in ubuntu

My environment: ubuntu 9.10

reference:  adobe's release notes

1. install java jre if you don't have it
sudo apt-get install sun-java6-jre
p.s sun jre 1.5 above is enough
2. install eclipse (eclipse3.3 above)
sudo apt-get install eclipse
3. download eclipse plugin binary from adobe
http://labs.adobe.com/downloads/flexbuilder_linux.html

4. execute the downloaded bin
ex: sh xxxx.bin