I'm testing the Enhanced Client (Which is more buggy but more modern) I will upload the launcher and write a guide if I get it working in a satisfactory way.
Fairly simple to connect with the classic client.
Download the official client.
Download UO Razor
After installing the official client and either installing or extracting Razor, run Razor.exe
It should help you find your UO client.
Add a new server, the server name can be whatever you want, Bujin UO or SALAD! or whatever.
Server Host:
salad.yarrdev.com
Port:
2593