Android Question Stringfunction Missing

Hi,

We have purchased the standard version I have a couple of questions about string functions.

1) Is string functions part of the build.
2) I have found string functions.zip and have extracted it and place the xml and jar in my libs folder(c:\libs).

However I still get an error Unknown type: stringfunctions
Are you missing a library reference ?

Dim sf as StringFunction.

What so I need to do to get this to work ?

thanks
Ka;