We are integrating ESignLive with our ASP MVC site. I don't think this issue is specific to .NET, but I'm not sure where else to post it (sorry if it belongs in a different forum).
Our application generates a signer url like this:
signerAuthenticationToken = eslClient.AuthenticationTokenService.CreateSignerAuthenticationToken(new PackageId(packageId), email);
SignatureURL = authClient.BuildRedirectToSigningForSigner(signerAuthenticationToken, new PackageId(packageId));
We then display the signature document in an iframe using the SignatureURL as the src.