modify php-script

i have the script from [login to view URL] and would need some changes. First change would be to remove a text-field of a form which is required for submitting the form. I don`t need this field. Second change: There is a url-randomizer in this scripts that gives an output for a backlink-htmlcode. But it`s not working. This should be fixed so that it`s working again. The idea is to merge the input-fiels in admin-area under "settings" which are named "Website anchor" and "Alternative backlinks". So we would have one field where i can insert anchor & corresponding url together and this is shown on the site with the form then. Third change: In admin-area --> Home i want to have a dropdown where i can set two different options per link called "in bearbeitung" and "erledigt". Thanks for your bid.