I was just coming here to find out about this exact issue myself. I understand that webmasters have to redesign their sites every so often and they should, but when they start changing features that work to something that doesn't, they are getting carried away.
I don't understand why searching for downloads is yielding blog results. If I want to search for blogs, I would do so, but if I search for downloads, I expect to get a list of downloads as a result.
It may be a bug they have to fix, which I hope is the case. If it was intentional, then they need to change it back. Changes like this are going to get people frustrated and make them want to find alternative download sites as their default. Download.com does have a lot of competition and it isn't that hardor inconvenient for users to switch to one or more of them, such as Softpedia.com, for one example.
I do hope this issue gets resolved soon.
Do you no longer allow users to search for software.