Im sorry Davo, I don't mean to disagree with you since you are usually right 100% of the time but I have an iPad and a Linkstation live and use the File Browser app all the time from home and away, it works just fine. As a matter of fact their iphone app works perfect too. Alot of people that I know use this app since the www.buffalonas.com site is a bit sluggish. The File Browser app is awesome in that it actually starts to play the movies and such instantly.
Please make sure you have the following settings on the ipad in the File Browser app:
Display Name: Anything you want
Name / IP Address: The IP Address of your linkstation (192.168.1.XXX)
DNS Domain Suffix: Blank in most cases
Then you can choose wether you want it to ask you for a username or passwork everytime or enter a username/passwork that will be saved and used always.
Username: A username that has access to your linkstation. (In my case I use the same as my laptop, you could use admin if you wanted)
Password: Password that is set up on the linkstation for that user
Thats it! It should work fine.
If you are going to access your linkstation away from home using this program you need to do other things, let me know if this is what you plan on doing and I can try and help you with that.