When using AppleScript in Mac OS X 10.5 Leopard, the "Service" property of the "File Transfer" element may use a slightly different nomenclature than expected.
For example, if you were to write a script that returns attributes about a file transfer, you could notice the term "Service" actually representing the "Account" field, whereas the "Account" term is actually representing the "Buddy" field.
This does not impact the ability to write AppleScripts using these terms, it is merely a different use of terminology.