Welcome to warez buddy.
You'll find a lot of uploaders here (including myself), You could start with uploading with a rl or rdp/rda/rd (all 3 are same) or the new php uploader or if you have enough bandwidth and speed on your personal computer, you could start uploading from your own computer.
Choose the filehosts. I prefer Rapidshare(RS)+Hotfile(HF)+FileServe(FS). All three support remote upload and hence are convinient to use.
To learn the use of rl or rd or php uploder, you may require to search a bit on KWWH, topics must be already here.
If you want any kind of assistance, you can always PM me