MetaTagger patches are cumulative and inclusive(usually). In this case Patch ID 1731 is a superset fix on Patch ID 1690. Since you mentioned you installed both the patches, I wonder if you installed the latest patch first and then an older patch next.Can you make sure you have the latest patch. If true you build number will be 59794, other wise it will be 57246. You want the former.
in windows stop the "Metatagger Admin Server":1. cmd.exe > cd MetaTagger-bin directory2. iwmtadminserverwill start mtserver and studio server, printing the build numbers.in Solaris, stop /etc/init.d/iw.mtadminserver(ice):1. $cd Metatagger-bin directory2. ./iwmtadminserverwill do the same start/print build information-there could be other ways as well.