Mobile accounts tiger and leopard server question

As in my last post i upgraded my server from tiger to leopard. im running ldap services. i have a couple of clients that have tiger laptops with mobile accounts running with ldap i updgrade my server to leopard. whats the best way, to set up the mobile accounts on leopard so when my clients come back from break, there wont be any errors of syncing, due to the new upgrade. the ldap is the same as the old ldap config. thanks!