CURSOR POSITION AND TABLE ENTRY

HI ALL

I AM MAKING ONE MANUAL ENTRY SCREEN IN THAT USER ENTER DATA. I DONE IT WITH THAT BUT SOME MINOR PROBLEMS I AM FACING SO NEED YOUR HELP.

IN MY MODULE POOL I WANT SET MY CURSOR FIELD TO TABLE CONTROL FIELD, I TRIED WITH SET CURSOR FIELD BUT IT WASNT WORKING

AND SECOND IS WHEN I CLICK SAVE THEN THE LOOP STARTS FROM THE FIRST ENTRY OF DISPLAY TABLE CONTROL MEANS IF I AM HAVING 10 FIELDS WHICH DISPLAY ON MY SCREEN AND I ENTERED 15 ENTRIES IT GOES SCROLL DOWN AND AFTER SAVING IT WILL START FROM MY FIFTH ENTRY AND FIRST FIVE ENTRIES ARE SKIPING WHICH I DONT WANT I USED SY-INDEX SY-TABIX AND SY-LOOPC ALSO BUT NOT GETTING PROPER RESULT

I WANT ALTHOUGHT IT IS 30 ENTRIES THEN ALSO LOOP CHOULD COME TO THE FIRST ENTRY OF TABLE CONTROL NOT FROM THE FIRST ENTRY OF DISPLAYING TABLE CONTROL.