thx a lot fpausp, I I tried those wich I've found on rpm.pbone.net:
shfs-kmdl-2.6.9-34.EL-0.35-3.99.el4.at.i686.rpm
shfs-0.35-3.99.el4.at.i386.rpm
It works great on 7rc1.
If someone is interested you just have to get them and rpm -Uhv them
then depmod -a
modprobe shfs in order to load the kernel module
Now you can mount an ssh directory with this command:
mount -t shfs user@remote:/directory /mnt/shfs
or
shfsmount user@remote:/directory /mnt/shfs