I've been trying to figure out a way, but had no luck so far.
You can't do it with the current version of TSMiniWebBrowser. To load local html files you should modify or subclass TSMiniWebBrowser and initialize the internal UIWebView like this:
NSString *imagePath = [[NSBundle mainBundle] resourcePath];
imagePath = [imagePath stringByReplacingOccurrencesOfString:@"/" withString:@"//"];
imagePath = [imagePath stringByReplacingOccurrencesOfString:@" " withString:@"%20"];
NSString *fileString = [[NSBundle mainBundle] pathForResource:"your_html_file_name" ofType: @"html"];
NSString *newHTMLString = [[NSString alloc] initWithContentsOfFile: fileString encoding: NSUTF8StringEncoding error: NULL];
[webView loadHTMLString:newHTMLString baseURL:[NSURL URLWithString: [NSString stringWithFormat:@"file:/%@//",imagePath]]];
@BrianGilbert it doesn't really make much sense to use this for local stuff. Most of it is designed for browsing remotely; reloading, open in safari, activity indicator etc... it'll probably be easier for you to just use a plain old UIWebView wrapped in whatever you want.