how to restore a homedir

hello

last day my O/S damaged and i desired to order o/s reloading
everything is ok now and the fresh o/s works fine
the problem is :
my data is on second hard drive attached to server
but i dont have backup on the hard to rollback them
i have only the homedir and entire directories of my old o/s
how can i restore my data to new o/s ?
i dont have backups
my o/s is lnux enterprice 3 . please help
what must i do ?