Re the driver affecting pdf printing, the answer is no. The print to pdf uses internal processes and is not impacted by the vendors driver. So given that Rosetta was no help and Word is also failing, then it suggest that the core printing system is at fault. Although the ability to CS2 to print is a 'curve-ball'. The CS2 suite does things differently when it comes to printing but it still eventually uses the core printing system to get the file to the printer.
So, some things to try....
1. Install the 10.4.9 Combo update. If you did the sequential update from 10.4.8 to 10.4.9, then this update can fill missing holes.
2. Get Fixamac's Printer Setup Repair utility to see if it can identify any issues.
3. Get Gutenprint 5.0.0 and try adding a printer using one of these drivers.