When you do build/build.sh clean exploded-deploy you only deploy the core portal.
If you want the CMS (What you meant by right side i guess) go to core-cms and do "ant deploy"
If you want the Admin portlet, go to core-admin, do 'ant deploy'
If you want the Test portlets + News portlet, go to core-sample, do 'ant deploy'
So you can work on individual pieces without redeploying everything, it is more developer friendly.
OR if you want the same thing as the binary you can download use the distrib.xml build file.