I just spoke with Angevon about this moments ago, but there is a reason they're disabled. There is a severe security flaw in PHP 5.3.6 and prior which could have disastrous implications for the wiki and/or the forums. I'm waiting on fixed packages from Ubuntu, but am attempting building new packages with the fix in the meantime.
Until this issue gets fixed, uploads will be disabled until further notice. The security of the site is absolutely paramount to anything else right now.