It really depends on which OS the 190cs is running but if it is anything before OS 8.5 or 8.1, (can't remember which), then Filesharing over AppleTalk will be incompatible. Your best bet is to get an FTP application such as Fetch onto the 190cs and set up the MacBook as an FTP server. To do the latter go into the "Sharing" control panel in Tiger and tick "FTP Access" in the list.

The MacBook can then be accessed via FTP from the 190cs simply by connecting to the MacBook's IP using your Tiger username and password.