Where can I download the game editer free?

The way download managers work is that they use up multiple connection slots of the server that is hosting the data you're downloading and, in that way, speed up your download.
Essentially they're the same thing, although the term "download accelerator" can be a bit misleading as you can't speed up your internet connection without getting a faster one.
As for which is the best download manager, I personally use Flashget because it is very simple to use. Likewise, many others I know also have positive experience of Flashget.

FLV converter for Mac is also a flash video editing tool.

Download Manager is a download manager. It manages all the files you download from the internet. It does not fasten your downloads. Its just a download manager.
Download Accelerator is a software that accelerates your downloads. It fastens the download of the files you download from the internet.
Where DAP is concerned its the best. But I have used Download Accelerators for many years and I don't think they are worth. They show that they are downloading with great speed but they are actually not.

Mod Converter for Mac also helps you to edit your Mod file and optimize it.

Using power of this free download manager and accelerator you can downloads files and complete websites up to 600% faster than before. It utilizes complete bandwidth of your internet connection even if you download from slow web sites. Features of the download manager include: easy integration with Internet Explorer and Opera, powerful scheduler, antivirus integration, adjusting traffic usage, resuming downloads, downloading complete websites.
see the website
They virtually will do the same thing. They will open multiple connections to the host of the file you are wanting to download and will do it in pieces instead of a whole.
ITS one of the same thing

Mac Tod converter provides several optimized seetings for iPod adn iPhone.

while manager will help u to manage ur dwnloads easily
SO I PREFER U 2 IN !
DAP
download accelerator will increase the download speed.
download manager will manager the downloading files like pausing and starting from where it was stopped and keeping them in one folder.
So basically both are different it's your choice according to your need.