Since there's an "and" there connecting only two parts, there's no comma needed here.

If there were three parts (e.g. "See the answer on the website, do the funky chicken and let us know if it didn't solve your problem") then you can put a comma before the "and", but some people will berate you for using an Oxford comma because that's what they see as their mission in life.

http://en.wikipedia.org/wiki/Serial_comma