RE: in the attachment are our snippets for our custom fields.
All is ok but we are not able to import the custom fields.
Add an entry that contains data for your custom fields and then do a CSV export. When doing an import, make sure the data for those fields match exactly as they are export otherwise they will not import.
If you supply a very small CSV export of an entry which contains data for those custom fields, I should be able to spend a couple minutes and do a quick test.