Having just found this mod, I myself am new as well. Before I begin however, let me just say that I'm sincerely impressed by the work that went into this project, I've watched several videos regarding this mod and am anticipating a great and rewarding bit of gameplay once I do manage to get the kinks worked out.
Much like the original poster, I've installed the RC2 version on a 1.0.7.0 version of GTA IV (without ELS) just to get a base install working to look at. However, it seems that no matter what I do I end up crashing the game minutes if not seconds after I load the mod and begin playing. Sometimes I make it through model selection for the officer in service, sometimes I even get as far as a traffic stop and then the sound starts looping, the screen locks up, and GTA eventually after a few minutes drops from the task manager.
My computer specs are as follows:
AMD Athlon 64x2 Dual
Core Processor 5200+
2.61ghz, 3.50GB Ram
Nvidia GeForce 8800
Windows XP SP3 Home Edition
On lower settings I've played successfully through GTA IV several times without issue, but when this mod loads its a crash fest and I've reinstalled probably 3 or 4 times in the last 2 days trying to get things running right. Any help at all would really be appreciated as I'd love to actually get through an hour or two of game play and enjoy this mod.