Hi I am trying to find files over a size given by the user.

this is what I have so far

echo "Enter a pathname to check (example = /home/jsk1gcc/testwork): "
read input
echo "Enter a the size (examples = 100k, 10M, 1G): "   
read size
find $input -size +$size
echo
echo "Hit the Enter key to continue"
read junk;;

Unless the users home directory is group owned by a group you are also in and is group readable and accessible or the user's home directory is world readable you won't be able to do this as yourself, to test try cd'ing into the user's home directory and cat'ing say .profile, .kshrc, .bashrc or .cshrc.
You could do it as root as long as the home directory is not NFS mounted and the NFS server has not given your NFS client root access.

No file big enough? Diectory is a link?

See if you get anything from this command. It looks for files (not directories or other types) larger than one character, following any links. It also has the "-print" switch because some versions of find don't output anything to terminal unless specify.

find /home/jsk1gcc/testwork -type f -follow -size +1c -print