Rohit, Steps are here to configure Apache HTTP server w/ Apache Geronimo (Tomcat as webcontainer)
http://www.ibm.com/developerworks/forums/dw_thread.jsp?message=13766589&cat=51&thread=98829&treeDisplayType=threadmode1&forum=541#13766589
*should* work for v1.0 of Apache Geronimo.
/Bharath