Is Windows Vista suitable for Intel Pentium 4 ht 3.0ghz 1gb of ram and 80gb hdd?

Yes, the official CPU requirement for Windows Vista 32-bit is simply a x86 CPU clocked at 800 Mhz or above.

Any Intel Pentium 4 meets those technical specifications.

About Windows Vista 64-bit, it depends on model of Pentium 4 : first models don't support x86-64 instructions but the newer models fully support them.