Using multiple profiles in Sunbird Portable

I want to use 2 profiles with Sunbird Portable. When i run "S:\PortableApps\SunbirdPortable\App\sunbird -p", it create profiles in "C:\Documents and Settings\(username)\Application Data\Mozilla\Sunbird\Profiles". How can i manage profiles ? How can i run sunbird with these profiles ? There is nothing about that in the faq. Thanks.