Contact info tab -> Admin section

Hi everyone,

I am having a problem whereby in the backend i am unable to access the default fields in the contact info tab. I have searched the forum and this problem has been discussed here:
www.joomlapolis.com/component/option,com_joomlaboard/Itemid,/func,view/catid,40/id,54939/#54939
and here:
www.joomlapolis.com/component/option,com_joomlaboard/Itemid,38/func,view/catid,27/id,74567/#74567

however no-one has posted a solution as yet.

Has anybody been able to resolve this?
Any help will be much appreciated...

What i wanted to do here is have a first name and surname field.

I found a solution here:
www.joomlapolis.com/component/option,com_joomlaboard/Itemid,38/func,view/id,31893/catid,27/limit,6/limitstart,0/

but i would still like to turn off the user editor selection option, any suggestions?

Or cant this be done.