Problem with hardcoded NFS mount point

Hi,

I have a problem with a "mediadevice"(tvix 5000) that has an nfs client.
I want it to mount a nfs-share on a cheap NAS-device(Maxtor Shared
Storage). The NAS-box is running Busybox embedded Linux.

The problem is the following:

1. The "mediadevice" is hardcoded to mount the path /xxxx
2. I don't have write access to / on the NAS-device(flash disk)

So, I can't create a /xxxx directory or link on the NAS-drive, and I
can't change the mount point(except ip-address) on the NFS-client.
Is there any way to export by NFS a directory, like /yyyy/zzzz/xxxx but
have it visible/mountable as /xxxx ?

Any help appreciated!

Regards, Bjorn