Update Suse Professional 9.1 to Open SUSE 10

Dear Suse User, Anybody know how update the Suse OS completely from Suse Professional 9.1 to OpenSuse 10, are compatible? Use the same architecture like source.lst and rpm package? YAST is present in OpenSuse 10? Is possible to protect the istalled software like Matlab 7 or the library linked staticaly will be overwritten?? Thanks in advance, Dukov82