[Xenon]

for 1:
in register.php it will work somehow similar, but i'll show you how to do in member.php

find that:

PHP Code:

    $varname="field$profilefield[profilefieldid]";
    if ($profilefield[required] and $$varname=="")
    {
      eval("standarderror(\"".gettemplate("error_requiredfieldmissing")."\");");
      exit;
    } 


and change to:

PHP Code:

    $varname="field$profilefield[profilefieldid]";
    if (($profilefield[required] and $$varname=="") or ($profilefieldid == 2 and $$varname != "" and strlen($$varname)<5))
    {
      eval("standarderror(\"".gettemplate("error_requiredfieldmissing")."\");");
      exit;
    } 


that will disallow all inputs smaller than lenght of 5 except no input