[voglermc]

Here is all I did:
Find this:

<div>
                        <div>
                    <input type="text" class="textbox" name="vb_login_username" id="navbar_username" size="10" accesskey="u" tabindex="101" value="<vb:if condition="$username">{vb:raw username}<vb:else />{vb:rawphrase username}</vb:if>" />
                    <input type="text" class="textbox default-value" tabindex="102" name="vb_login_password_hint" id="navbar_password_hint" size="10" value="{vb:rawphrase password}" style="display:none;" />
                    <input type="password" class="textbox" tabindex="102" name="vb_login_password" id="navbar_password" size="10" />
                    <input type="submit" class="loginbutton" tabindex="104" value="{vb:rawphrase log_in}" title="{vb:rawphrase enter_username_to_login_or_register}" accesskey="s" />
                        </div>
                    </div>
                </fieldset>
                <div id="remember" class="remember">
                    <label for="cb_cookieuser_navbar"><input type="checkbox" name="cookieuser" value="1" id="cb_cookieuser_navbar" class="cb_cookieuser_navbar" accesskey="c" tabindex="103" /> {vb:rawphrase remember_me}</label>
                </div>

Replace with this:

                    <div>
                        <div>
                    <input type="text" class="textbox" name="vb_login_username" id="navbar_username" size="10" accesskey="u" tabindex="101" value="<vb:if condition="$username">{vb:raw username}<vb:else />{vb:rawphrase username}</vb:if>" />
                    <input type="text" class="textbox default-value" tabindex="102" name="vb_login_password_hint" id="navbar_password_hint" size="10" value="{vb:rawphrase password}" style="display:none;" />
                    <input type="password" class="textbox" tabindex="102" name="vb_login_password" id="navbar_password" size="10" />
                    <input type="submit" class="loginbutton" tabindex="104" value="{vb:rawphrase log_in}" title="{vb:rawphrase enter_username_to_login_or_register}" accesskey="s" />                        
                    <label for="cb_cookieuser_navbar"><input type="checkbox" name="cookieuser" value="1" id="cb_cookieuser_navbar" class="cb_cookieuser_navbar" accesskey="c" tabindex="103" /> {vb:rawphrase remember_me}</label>
                        </div>
                    </div>
                </fieldset>

I don't use the icons, it just gets everything on one line.