Before you put the HTML code into the Post, you must be parse that code before. If you don't you will see the error messages screen.

The blogspot error messages:
Your HTML cannot be accepted: Tags cannot enclose tags input value=....


To anticipate that situation, you must be parse the HTML code. For easy parse the HTML code use this link

http://www.blogcrowds.com/resources/parse_html.php

How To:
Just by copying your HTML code and than paste into the column, your HTML code has been parse with faster.

Now when you get the parse code, the code is ready to put on your Post like this:

<INPUT TYPE="BUTTON" VALUE="Free2hot Home Page" ONCLICK="window.location.href='http://free2host.blogspot.com'">