How i must connect my memory usb stick? suse 8.1

It should be pretty easy...

First, create a directory for your mount-point...
mkdir /mnt/usb
chmod 0777 /mnt/usb

The chmod sets the permissions so that any user can read / write / execute the directory.

Second, try mounting...
mount -t vfat /dev/sda1 /mnt/usb
ls /mnt/usb
umount /mnt/usb

In most systems, USB connected devices are run under SCSI emulation, thus the sda device. The ls will list the files on the drive. Notice, the umount command doesn't have an N between the U and the M.

Third, as long as the last step worked, you can now edit your /etc/fstab...

Any user will then be able to mount / unmount the drive with...
mount /mnt/usb
umount /mnt/usb

Commands above in red must be run as root. Commands in green can be run by any user. Also, be sure to always unmount before removing the drive.

Hello!
I have tried this, but after the
"mount -t vfat /dev/sda1 /mnt/usb"
command I receive the error message:

"mount: wrong fs type, bad option, bad superblock on /dev/sda1,
or too many mounted file systems"

What would be my next step? (The guy at the computer store forecast I would encounter problems ;-)

My current fstab is
"
/dev/hda5 / ext3 defaults 1 1
none /dev/pts devpts mode=0620 0 0
/dev/hda6 /home ext2 defaults 1 2
none /mnt/cdrom supermount
dev=/dev/hdc,fs=auto,ro,--,iocharset=iso8859-1,codepage=850,umask=0 0 0
none /mnt/floppy supermount
dev=/dev/fd0,fs=auto,--,iocharset=iso8859-1,sync,codepage=850,umask=0 0 0
none /proc proc defaults 0 0
/dev/hdb5 /tmp ext3 user,iocharset=iso8859-1,codepage=850,auto,exec,kudzu 1 0
/dev/hda2 swap swap defaults 0 0
/dev/sda1 /mnt/removable auto
user,iocharset=iso8859-1,kudzu,codepage=850,noauto,umask=0,exec 0 0
"
That last one looks like it could be the memory card, but how did it get there? And why do I get an error when attempting to copy something to it?

with thanks,
doug

I'd try testing the /mnt/removable entry...
mount /mnt/removable
..is all you would need to do if it works. What error does it give you?

It would have gotten there by Kudzu. It's a hardware probe that runs at boot-up.