Well... It just helps if you actually look around a bit. Help yourself before asking others to help you kinda thing. You made it to the spriting section, which means at some point you were on the main section of the forum. You actually skipped past a help section in order to get to a spriting section.
So no, you do not need to know the exact tools you need in order to ask what exact tools you need, you just need to post in a relevant section. I'll be honest, I doubt anybody is going to answer this question, since it can easily be found if you look around. Try the tutorials section, there is a sticky post called "tutorial link index" and has plenty of tutorials, with step by step instructions on how to sprite. I would check out the FFT spriting video tutorial, and conman's frankensprite tutorial, they are a great place to start.
If you are really interested in learning, you have to do the research yourself and ask questions you have about the research. There is also a good chance your question has been asked and answered already, possibly 100s of times. So try looking around in the relevant sections, the help section, and use the search bar above too. It's the most useful way to find answers to questions on this site, and you don't have to wait for a reply!
Good luck, everyone on here is very helpful, but they only help those who help themselves.