You asked about whether you need "exec rights" to use a mount point, i.e. a folder that a partition had been mounted to.
Did you mean rights to execute a file in that partition? Or did you mean that you might need to be root to use that partition?
Possibly the problem is due to a typing error in the instructions, from Fred, concerning the word "users". I read elsewhere that the word in fstab should be "user", without an "s". I'm not sure if this is the problem.
I found out a bit about fstab from this webpage: http://www.tuxfiles.org/linuxhelp/fstab.html
It says this:
> About "user" and "nouser". These are very useful options.
> The user option allows normal users to mount the device,
> whereas nouser lets only the root to mount the device.
> nouser is the default, which is a major cause of headache for new Linux users.
> If you're not able to mount your cdrom, floppy, Windows partition,
> or something else as a normal user, add the user option into /etc/fstab.
This word "user" may not be needed, I don't know.
If this device is mounted automatically, during boot up, which happens when "fstab" contains "auto", then maybe thus word "user" has no effect, because the partition is being mounted automatically at boot up time, not mounted by a user.
In my experience of putting "auto, user" in "fstab", the folder which is the mount point becomes owned by root, not user. This means that the user, (me or you), will only be able to read from the disk, not write to it. But I'm using Kubuntu 9.04, not Mint, so you may have better luck.
This may be harder than Fred thought. If anyone gets this to work, please let us know here.