It appears that I also have the latest and the functionality is broken. :\
Code:
14:29:20 sm exts list
14:29:20 [SM] Displaying 11 extensions:
[01] TF2 Tools (1.6.4-dev+4609): TF2 extended functionality
[02] BinTools (1.6.4-dev+4609): Low-level C/C++ Calling API
[03] SDK Hooks (1.6.4-dev+4609): Source SDK Hooks
[04] SDK Tools (1.6.4-dev+4609): Source SDK Tools
[05] Top Menus (1.6.4-dev+4609): Creates sorted nested menus
[06] Client Preferences (1.6.4-dev+4609): Saves client preference settings
[07] SQLite (1.6.4-dev+4609): SQLite Driver
[08] Socket (3.0.1): Socket extension for SourceMod
[09] Regex (1.6.4-dev+4609): Provides regex natives for plugins
[10] GeoIP (1.6.4-dev+4609): Geographical IP information
[11] SteamTools (0.9.0+d5d0838): SteamWorks for SourceMod.
What now?