when you remove the reference, phpbb removes the attachment, it seems to be a bug... as it's no longer displaying it but it is trying to, even though there is no longer any reference to it in the post. Root cause is likely that we are using old templates on a new version of phpbb.. so tricky to reso...
There's a number of web based converters, but I just got home so can't test which is the best one this very moment... PM me if you're still having trouble with it... I've converted around 1000.. perhaps I could zip and send u some... but not this very moment.
Words cannot capture how cool this is.. is like JC2 mixed with GTAIV, done in Hong Kong.. mostly kung fu fighting but also guns, cars n racing. No multiplayer.. but so awesome. If you speak Cantonese it's something you absolutely must play.