htaccess issue with WordPress

I was trying to figure out how to work with this wordpress blog for my new website. It gave me an htaccess issue when I change a permalinks. After I changed the permalinks, I couldn’t see the individual blog posts. It was throwing a 404 error. I am pretty sure I will figure out how to update the .htaccess file but unfortunately that day is not today. As I did not  have the patience and as I just started building my blog, I decided to get rid of the complete blog and start all over again. I couldn’t even figure out the location of htaccess file. I have to get some serious web admin knowledge before I get this thing going.