I just spent like 4 hours trying to figure out what the FTP login and password was. I kept thinking the the login and password for the FTP was the same as the ISPCofing login. Anyway just in case some one benefits from my learning this is how you create a ftp account:
1. login to your ISPConfig account
2. click on your site (in the "webs" dirrectory)
3. click on the "User & Email" tab
4. click on the "New" button"
5. Make sure to check on the "Administrator" box.
this will be your ftp account!.
I am not sure if this is the same for the webmail account though???