Connecting two domains

In order to establish a trust relationship, you must have a "constant and reliable" network connection between the two domains. There are no exceptions to the above. A modem or dial-up connection will not suffice. You will need DSL or cable or greater.

Trust relationships are easily broken and without that network stability, you cannot maintain a trust.

You shoud add entries in your host and lmhost files on your remote computers for your home domain.

As you've pointed out, there is no direct connection between your two servers, and this is your big stumbling block, since without this there is no way to establish a trust - there must be communication between the two domains at the server level, and from the sound of it, your VPN is via dialup direct from the clients.
This is not, however, an insuperable barrier, since options would be available to link the servers without putting in cable or DSL. I have been in a similar situation here in the UK, and found that a demand dial ISDN connection with a router at each end worked extremely well, and I would think that you could also do this with analog(modem) routers. Bear in mind that NT will support links over slow connections, and with the routers in place, you ought to be fine. As a corollary to this, if it is only your clients talking to the server(s) at the other end, and not clients needing to talk to clients, I would insert static WINS entries at each end for the servers at the other end (so Home WINS has static entries for Remote's servers, and vice versa). As I say, this is what I did, and we found it highly effective. Hope this helps.

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