Look at the temperature field. The Raw/Data column should have a normal temperature value and the Current/Worst columns should have a “strange”, high value. See several examples below.
Clearly, HD Tune is doing some fancy work and/or pre-processing of the data before formatting and showing it, and it is not working out quite right. In fact, looking at the raw value of the temperature field, HD Tune is interpreting, and maybe even reading the data incorrectly.
Try another SMART tool (preferably an OCZ one like Harry said). I like SpeedFan. Use that to see what the values are and if the numbers are still weird (eg the temperature field is still showing values similar to 30-129 in the Current/Worst columns and a huge number in the Raw/Data column). If they are, then it could be your drive; either it’s SMART circuitry is damaged, or it simply requires custom SMART software. However requiring custom SMART software highly unlikely since it is a standard and would be very user-unfriendly.
At least one other person has similar, strange results (see bottom image); though they may also have a defective drive.