Why the folders in Skydrive desktop app are not synchronized with Skydrive in Outlook.com

I have two versions of SkyDrive: one installed with Office 365 suite in my PC (as desktop app) and other in my outlook.com email account. I had saved some pictures and documents in the first one that never appears in the second. I even checked SkyDrive using my Microsoft Account and there were the files as well as information of my PC in the "Computers" section. And, back to outlook.com, none of those files were found. I need to sync both versions of SkyDrive to use those documents and pictures in my emails.