Userform to add or delete items from column

[ste67@me.com]

Hi everyone i have a problem i have no vba knowledge and need help please.

LIST OF NAMES IN COLUMN A
NEED HELP WITH USERFORM
LISTBOX1 NEEDS TO SHOW ALL NAMES IN SHEET AND MUST SCROLL AS LIST EXPANDS
TEXTBOX1 TO ENTER NAME AND AUTO SEARCH ON ENTER OR CLICKING OFF BOX.
TEXTBOX2 TO DISPLAY THAT THE NAME ALREADY EXISTS OR DOES NOT EXIST AFTER SEARCH
FINALLY COMBOBOXES TO EITHER ADD OR DELETE NAMES TO LIST

I hope that its an easy project for an experienced coder
regards Steve