Hello,
not sure about this notice, 2 MB is really low limit.
In FAQ they mention only 30 MB limit, so maybe this now applies to vectors too (?).
But jpg preview MUST be 15 megapixels or more.
I routinely upload zip files around 4-5 MB (with 15 - 38 megapixels
jpeg preview) using ftp and everything is working fine.
I find vector upload system on Fotolia very reliable.
Klara