First, download the instrument driver for the TDS3054 scope from
National Instruments' Instrument Driver Network. Depending on what software you have installed on your system, you may need to download additional software (look at the "Required Software" section). If you have Measurement Studio 6.0 and the NI-GPIB driver, you should have everything you need.
Once you've installed the instrument driver, look at the instructions that came with the instrument driver for how to save and read from your oscilloscope, and look at the instructions
here for how to use that instrument driver with Visual Basic 6.0.
TonyH
Measureme
nt Studio