XSI is a piece of crap. I know how to use Blender, but am too lazy to find a way to convert its .SMD exports to Source-compatible model files without using XSI. Anybody who can point me in the direction of a good tutorial gets a scone.
If this is your first time logging in after the migration (Feb 8, 2022), you must reset your password to log in. Follow this guide if you're having trouble