Hi,
thanks for trying it out!
Unfortunately, I personally do not support the project anymore. Plus your description doesn't give a lot of information: does the OSM file (=network) not load or does the ROUTE after route search not show. That's not clear from your message.
I know about an issue of IDs being LONGs. The whole project references IDs as INTs - so this COULD be an issue in loading the network.
Good luck - maybe someone else on the list can halep a bit further.
Cheers Franz