Now DAP already provides you with a built-in, out-of-the-box login form, at YourSite.com/dap/login.php . But if you want to put this form “within” your WordPress blog, so as to give your login form the same Look & Feel as the rest of your blog, then do this…
1) Create a WordPress Page (not “Post”) with the text %%LOGIN_FORM%% in the body of the page, and a title of say, Login, and save the new page. If you used the text “Login” for the title, then the actual link to this page would be YourSite.com/blog/login
2) This page now shows up as “Login” along with the rest of your “pages” on your blog.
3) Go to DAP Admin > Setup > Config . Scroll down to the field Login URL
In the text box, enter the full link to your login page from Step 1:
Or if your blog is in the root, then…
That’s it! When someone clicks on the “Login” link that now shows in your “Pages” menu, they will now see a nicely formatted login form.
Related: Where is the Logout Link?