Step 1. Log in to your Blogger Account → Go to Template and click Edit HTML
Step 2. Click inside the code area and use Ctrl+F to search, search for <data:newerPageTitle/> and replace it with the following code
<img src="NEWER POSTS IMAGE URL ADDRESS"/>
Step 3. Replace NEWER POSTS IMAGE URL ADDRESS with the URL of your newer posts image (Image for newer posts link)
Step 4. Now search for <data:olderPageTitle/> and replace it with the following code
<img src="OLDER POSTS IMAGE URL ADDRESS"/>
Step 5. Replace OLDER POSTS IMAGE URL ADDRESS with the URL of your newer posts
image (Image for older posts link)
Step 6. Now search for <data:homeMsg/> and replace it with the following code
<img src="HOMEPAGE IMAGE URL ADDRESS"/>
Step 7. Replace HOMEPAGE IMAGE URL ADDRESS with the URL of your newer posts image (Image for home page link)
Save Template And you're done