Hi Jack, sorry I must have explained wrong.
In the list on the Contact Fields tab, all the fields are showing (Standard WP AND custom fields). However, if I tick all of them, only the custom fields are pushed because ive used two filters in my functions.php file. If I untick the custom fields, then the standard fields are pushed correctly (regardless of the filter).
Since my last email, I tried the Push All suggestion of yours again and it seems to be pulling in the data now.
Thanks for the help with all this.
Rommel