possibly a radar hacker

I went to Beluslan with my friend and this gladiator called Csajsziii ruined our day with his voodoo. I guess it's hard to judge a radar hack by looking at a few videos and screenshots but i wouldn't post if i thought he's just a good player. I didn't record the first few times when he saw through our hide II. because i wasn't prepared/didn't want to believe that it's hack.

http://www.youtube.com/watch?v=3fTrQhSlKAk
<- i was intentionally sneaking and running in specific directions - he kept following me.
Screenshots taken from the raw video if his name is not visible enough:
http://img177.imageshack.us/img177/1450/snapshot20101011224718.jpg
http://img218.imageshack.us/img218/4112/snapshot20101011224736.jpg

http://www.youtube.com/watch?v=IG-1YIkC0EE
<- on this one i recorded how long i was in Shadow Walk to prove he didn't see me using it on his 'chat radar'.
Chat window from 01:22 'till the end of the vid:
http://img222.imageshack.us/img222/966/elyoshide.jpg
What he said meant "Elyos hide" and when i stuck between that tree and a rock he said "here" - check it on http://nya.aiononline.cz/translator/ if you want. Yes, he was with an assassin this time but he was the one who kept saying i'm there like he knows without the help of that assassin.

http://www.youtube.com/watch?v=kWU-qFvo498
<- only him and 2 people who had the proper skills to see through advanced hide followed me instead of zerging the bigger group of elyos.
http://img820.imageshack.us/img820/9781/snapshot20101011231220.jpg

http://www.youtube.com/watch?v=oVtYJKEdo_s
<- my friend recorded this.
Snapshot from raw video file: http://img411.imageshack.us/img411/8523/snapshot20101011214724.jpg