for the first question:
try # mount -t iso9660 /dev/hdc /mnt/cdrom
instead. If it is a standard CD, this should work.
And make sure if your cdrom is hdc.
If you know where java is installed, that s fine.
If you don't, try to look for it with:
$ find / -name java
remember the location.
$ export PATH=/path/to/java:$PATH (*if you are using bash*)
Sorry but I forgot the command in c shell...
somebody please help me fill in