Modbus Integration Kit - Old Version

Hi, is it possible to download older versions of this?

I have a device that uses a really customised version of Modbus. I found the old Modbus serial integration kit was a lot easier to make quick mods to but I have since lost it.

Check out this link:
ftp://ftp.opto22.com/Public_Folders_(Unsecured)/Archives_(Software_and_Firmware)/Software_Archives/SDKs/PAC%20Control%20Toolkits%20and%20SDKs/PAC-INT-MB/Previous_Versions/

(Try w/Firefox – that browser has better ftp support than others.)