Simple open database script

[Kieron]

I am having a few problems with an applescript opening a hosted file on FM server 5.5

When I use the following script it doesn't find the relevant file. Is there an easy way to direct the script to open a database from a specific server?

tell application "Finder"

activate

select file "filemaker pro" of folder "filemaker pro 6 folder" of folder "applications" of startup disk

open selection

end tell

tell application "FileMaker Pro"

open file "FM.fp5"

end tell

Would I have the same problem with this script in OS X?

Thanks

Kieron.