I will try to explain simple way. 

1. forget password page(now) : http://demo.oxpro.org/oxwall/forgot-password

    change to attach file.

2. join page(now) : without top menu & image.
   change to attach file.

If you explain, I can try.
Thank you.

yep ok here is the forgot password

open ow_system_plugins/base/views/controllers/user_forgot_password.html

and right before the first div (after style) add this line

<div class="ow_header_pic"></div>

clear cache and done..

i dont know about the login page..

doesn't oxpro offer support?

Ok got the sign in page too..

open ow_system_plugins/base/views/controllers/user_standard_sign_in.html

and add the line before the first div and after the style

<div class="ow_header_pic"></div>

Then add this to your custom css in admin themes

.ow.base_sign_in  .ow_sign_in_wrap {
     padding-top: 40px
}

There are not top menu.
There is only top image.

How can I add top menu.

I dont know... thats alittle above my knowledge...

But when you do the login page, add this to your custom css in admin themes too..

.ow.base_sign_in  .ow_sign_in_wrap {
     padding-top: 40px
}

that will bring the login form back up on the page. 

Try adding this before that div for the image in those html files

{$main_menu}

see if that shows the menu

{style}

{literal}

.ow_forgot_password{

    margin:0 auto;

    padding:100px;

    width:350px;

}

{/literal}

{/style}

{$main_menu}

<div class="ow_header_pic"></div>

<div class="ow_forgot_password">

    {block_decorator name='box' style='text-align:center;' langLabel='base+forgot_password_cap_label'}

        <div style="padding: 0 5px 5px;">{text key='base+forgot_password_form_text'}</div>

        {form name='forgot-password'}

            {input name='email' class='ow_smallmargin'}

            <div class="clearfix"><div class="ow_right">{submit name='submit' class='ow_positive'}</div></div>

        {/form}

    {/block_decorator}

</div>

still not working.

<div class="ow_page_wrap">

<div class="ow_menu_fullpage">

<div class="ow_menu_fullpage_wrap">{$main_menu}</div>

</div>

<div class="ow_site_panel clearfix">

<a class="ow_logo ow_left" href="{$siteUrl}"></a>

<div class="ow_nav_btn"></div>

<div class="ow_console_right">

{component class='BASE_CMP_Console'}

</div>

<div class="ow_menu_wrap">{component class='BASE_CMP_MainMenu' responsive=true}</div>

</div>

<div class="ow_header">

        <div class="ow_header_pic"></div>

</div>

{*if isset($imageControlValues.headerImage.src)}

<div class="ow_header">

            <img class="ow_header_img" src="{$imageControlValues.headerImage.src}" />

            <div class="ow_header_pic"><img class="ow_header_img" src="{$themeImagesUrl}header.jpg" /></div>

</div>

{/if*}

</div>

<div class="ow_forgot_password">

    {block_decorator name='box' style='text-align:center;' langLabel='base+forgot_password_cap_label'}

        <div style="padding: 0 5px 5px;">{text key='base+forgot_password_form_text'}</div>

        {form name='forgot-password'}

            {input name='email' class='ow_smallmargin'}

            <div class="clearfix"><div class="ow_right">{submit name='submit' class='ow_positive'}</div></div>

        {/form}

    {/block_decorator}

</div>

user_reset_password.html : same