remove categories

Hi again, Sorry for so many questions, I'm new at this! 1.) how can I remove the categories, tags, and author from my posts? I just want the date listed. 2.) I found this amazing site called perfections.com and have created the icons I really like, I can't figure out how to put them on my site! perfecticons.com provides the HTML and CSS I believe, but I don't know how to place them at the end of each post and another (different!) set of custom icons at the top right header section, any ideas? Best, Bailey theecodiaries.com