Connect existing project to maven build

Hi . I need to connect my project with Maven to JAVA build.
Java is a server side and Flash user side in CMS.

How do I know what flexmojos version I’m using?
I have to replace variable with some version, right?


<groupId>org.sonatype.flexmojos</groupId>
				<artifactId>flexmojos-maven-plugin</artifactId>
				<version>${flexmojos.version}</version>
				<extensions>true</extensions>