When you uploaded it, did you have to upload each file individually? I think my Yahoo hosting account will only allow me to do it that way, which would take me about and hour and a half it looks like. Thanks.
One file at a time WILL take a long time. You do need to get all the files to the server. LOL when you need to do upgrades. Does Yahoo allow you to use an FTP utility? If so, do it that way. You are very likely to have performance problems with Yahoo hosting. From what I've seen in the past, their servers are grossly overloaded.
as mentioned above, use an FTP program. if not does yahoo let you upload/extract .zip files? you could upload the whole .zip file and extract it onto your hosting.