If you have trouble getting Fieldframe fields to display in the proper order within the {custom_fields} loop, throw them in an {if} conditional…
<div class="form">
{exp:weblog:entry_form weblog="members" return="{all_segments}"}
<label>Contact Person Name <span class="required">*</span></label>
<input class="text" type="text" name="title" id="title" value="{title}" maxlength="100" /></p>
{custom_fields}
<label>{field_label} {if required}<span class="required">*</span>{/if}</label>
{field_instructions}
{if textarea}
<textarea class="textarea" id="{field_name}" name="{field_name}" dir="{text_direction}" cols="50" rows="{rows}">{field_data}</textarea>
{/if}
{if textinput}
<input class="text" type="text" dir="{text_direction}" id="{field_name}" name="{field_name}" value="{field_data}" maxlength="{maxlength}" />
{/if}
{if "{field_name}" == "field_id_65"}
{member_business_type}
{/if}
{if "{field_name}" == "field_id_68"}
{member_state}
{/if}
{if "{field_name}" == "field_id_74"}
{member_billing_cycle}
{/if}
{if "{field_name}" == "field_id_71"}
{member_url}
{/if}
{if "{field_name}" == "field_id_75"}
{member_payment_method}
{/if}
{/custom_fields}
<input type="submit" name="submit" value="Submit" class="submit" />
{/exp:weblog:entry_form}
</div>
You can find the id of a field by looking at the URL to edit the custom field (fieldframe field) in the EE CP.