You misunderstood java and theme files. First you should install the drivers for siemens brew-based cellphone [see attachment], then config the communication port in Brew Mobile Commander. After that, you can connect your phone easily. If you want to install theme, navigate to the theme files in the left panel of BMC, and right click the .sdt file and choose install. If you want to install java applications and games, navigate to the .jar and .jad file pairs in the left panel of BMC, right click the .jar file and choose install. If you have only the .jar file but without the corresponding .jad file, you can create one by BMC first. 附加壓縮檔: 200804/mobile01-fa52444d7e6544c1bf01d316f7dab52b.zip