importing project from WebObjects-5.2 to WebObjects-5.4

Hi All, We have a project which is developed using WebObjects 5.2.4 and Java 1.4.2 on Windows XP Platform and deployed on Solaris 9. Now we would like to upgrate to WebObjects 5.4 on the same Windows XP Platform and deploy to same Solaris 9. Is WO 5.4 compatible on Windows XP platform ? If so, can any one advise me how to convert my project to WebObjects-5.4 ? Thank You, Santosh