how to install java stack pathes

hi friends

i have installed EP and DI in a box and sp level is sp09. now i want to apply upto sp13. i got sp 11 java stack with the softwaer its in dvd and its having lable.asc file . i would like to know how apply it .

my question is

1 . how to install the java stack sp 11 dvd which contains (lable .asc).

2 . do i need to fallow the sequence to apply the stacks. like (sp 10,11.12,13) only java stack

3. what is the processor to apply stacks .

4 . can i install the stacks when the system is down.

its urgent

regards

raja