Firstly download and install both the new version 4 free and the donwloader utility from the website.
Use the Green or Blue downloader to match the colour icon you used for version 5 eProfile. Open it and enter your Cloud login details (you have to have administrator level login for this).
Once you have logged in you will be able to download your Cloud data as a backup.
Select the folder where you want to place this. The file name is eProfile_CloudBck.db
Use the V4 Restore your work utility and point to this file.
If this does not work due to not having old V4 installed then you may do the following:
Rename the file as eProfile.db
Copy it to the work folder. You may need to create the folder structure first as V4 free assumes this is present.