TOPIC: [SOLVED] Install error on Joomla 3.0.3

itstaff - glad you got it installed. The reason why you would've had that issue would be due to PHP limitations. DT Register is a large package, so hosting plans setup with more restrictive settings can have this issue. It's noted in the readme file in the package and many other forum posts here. The setting is upload_max_filesize. This must be larger than 2M. We recommend at least 4M, if not 8M. My guess is you'll find yours set to 2M which is not enough for DT Register.

This is why you were able to install it from the directory option. Anyway, glad you got it sorted. I'd recommend getting that setting increased though or you'll run into the same issue with future updates.