Topic says almost all.
Someone did an awesome time in one of my tracks, and I'd like to see the replay.
In dedimania site when trying to download I get this "To have access to Validation and Ghost replays, you need to be connected, and your account upgraded on Dedimania "!
I'm loged in... How can I upgrade my acount? What this mean? (I don't have any idea what they talking about)

I'm pretty sure you have to donate to Dedimania.

DeMeNs and I talked about it on IRC, but I'll post the info I found... in case others are interested.

From this post: http://dedimania.net/SITE/forum/viewtopic.php?pid=2444#p2444

Slig says:
Dedimania for TM2 introduce one main new feature against cheats and unwanted wrong records : ValidationReplays are now sent (stored only for best records), allowing a quick check that the map uid is the right one, that the announce best time is the same than the VR one, and allow later manual validation of the replay if the record seems strange. A Ghost Replay is also asked for Top1 records, permitting a manual visual check.

That will also allow a new feature : possibility to get the best times Ghost Replays.

It will also be possible to upgrade servers and players to a MaxRank above top30... but it won't be free : last 2 years donations are far, far, far, far from being enough to pay the rent server used for Dedimania, so the need to try to find a reliable business model. The upgrades are not yet possible, i will give more infos about it when available.

and from this page:
http://dedimania.net:8082/Dedimania

Slig says:
Players and servers can be upgraded for few bucks (once available on http://dedimania.net/tm2stats).
Player upgrade : increase MaxRank, allow to download stored ValidationReplays and GhostReplays, allow to store individual config sent by tools.
Server upgrade : increase MaxRank (so allow increase record MaxRank for all players playing on it).

So once the upgrade feature is available on: http://dedimania.net/tm2stats
Then you'll be able to get those replays. For now, apparently you can't.
But I'm sure it's quite handy for Slig to now have all the validation replays for top times in order to check and make sure records weren't cheated.