Sorry- I’m adding this to my first response because I didn’t really understand everything!
Question:
If Jefferson and Burr were democratic-republican running mates then why did they have an equal number of electoral votes? Why were people voting on a vice-president?
 
Search Engine: Google URL: http://en.wikipedia.org/wiki/U.S._presidential_election,_1800

This first website was very helpful. It thoroughly explained why Aaron Burr went from Thomas Jefferson’s running mate, to his running opponent. This site was written by a man named Jimmy Wales. Wales is the founder of Wikipedia.com and is thought very highly of by USA Today and the New York Times. Because I found so much information on Wales and there didn’t seem to be any advertisements or pop-ups, I think this source is very reliable. Throughout the site there are several links, allowing you to further learn about a particular person or event, and there is even a map, showing you how the different states voted. This source fully explained my question.

Search Engine: Yahoo URL:
http://www.multied.com/elections/1800.html

This second website was not as helpful as the first. Instead of this site focusing more on the “scandal” between Jefferson and Burr, it zeros in on Jefferson and Adams. Unlike Wikipedia, this site was very wordy, providing you with neither pictures nor diagrams to help you further understand the material. However, this site was somewhat useful in helping me look at the election of 1800 on a larger scale. This site was written by MultiEducator, Inc. When I researched this company I found that they have published a lot of history based websites, such as HistoryCentral.com. Although this site seems just as reliable as the first, this site was not near as useful.

Answer to my question:
During the election of 1800, the United States Constitution stated that each presidential elector was to cast two votes and whoever came in first would become president, while whoever came in second would become vice-president. However, electors, meaning to cast a Jefferson-Burr vote, voted once for each and created a 73-73 tie between the two running mates. The election then went to the House of Representatives. It was there that, after much debate, the delegates voted in favor of Jefferson.