Hi, I have a blog(http://www.onlinecashadvance.blogspot.com/) i would like to modify the design of the blog. Currently it is having a default blogger design. How can i modify the template? is that compulsory to learn html for this?
I don't use Blogger, but yes, you will have to learn HTML to do this, as well as their templating system. For the HTML part, you might want to look into reading Build Your Own Web Site The Right Way Using HTML & CSS by Ian Lloyd.
Of course you have to learn about html if you are doing blogs then you should know that how to add hyper link on your anchor tag, and there is lot's of tag and attributes which you should know that like alt, title, TR, BR etc it's always use in html.
If you don't want to do it the 'best way' you can just change the layout and blogger had LOADS of templates that you can choose from.