Following the directions, I typed:
/opt/ibm/db2/V9.5/instance/dascrt -u dasusr1

and got:
DBI1088E Invalid access permission detected for directory

Check permissions for the given directory and restart the install
process. Suggested directory permissions are u=rwx,go=rx

these are the permissions as they stand now…
drwxr-xr-x 5 root root 4096 2009-05-14 10:12 home
drwxr-xr-x 3 dasusr1 dasadm1 4096 2009-05-14 10:46 dasusr1
drwxrwsrwt 2 dasusr1 dasadm1 4096 2009-05-14 10:46 das

Do I need to change the permissions and try the dascrt again? How do i do that?