The screen shots used for illustration were made with Windows Live Mail on a Windows 7 machine.

The principle will be similar on other "free" Windows email tools, but the details will be a bit different.

Open the Contacts section, then click Import and select Comma separated values (.CSV).

 

 

Browse to the CSV file you exported from ForScore and click Next.

 

 

Even with the funky column names on the CSV export, you may need to tweak the mapping.

Map the exported Email Address to Live's Email Address.  Be sure to mark the Import this Field checkbox.

 

 

Although the name appeared to match, I found I had to use the mapping box for Home City as well.

 

 

When it has finished, you can use the address book contacts for email, etc.

Note that the funky column names mapped all of the classifications into the "Job title" field in the address book.