Look, we're doing this in our spare time, because we all have day jobs and all kinds of other stuff. We only have limited time to work on OpenRCT2 and we have to set priorities.
You really need to be more patient. Development of open source projects takes time. You also shouldn't keep e-mailing IntelOrca. Ask your questions here and actually *wait* a few days - do not get impatient if your question isn't answered straight away. (Also note that this is basic forum etiquette.)