my previous post got deleted for some reasone, reposting. Would this flash work on my e500? how about the ttl?

i used to have a 3rd party flash.. yeah the flash worked just fine but dont expect the TLL function..

am new with this flash gun, what's the difference of ttl and automatic setting of flash gun? For now fl50 is still beyond my budget. i'm looking at the fl36 but i heard the charging time is terrible.