This wiki page (http://tr.pardus-wiki.org/NASIL:KPPP_ile_GPRS_veya_3G_internet_ba%C4%9Flant%C4%B1s%C4%B1_kurmak) is about kppp and 3g modem settings, unfortunately only in Turkish. Maybe the step-by-step screenshots may lead you to solve the problem. Also the Turkish mobile provider Turkcell uses Huawei brand 3G modems, you should check "Turkcell" part of the mentioned page.
It is also a known bug that some usb devices are not recognized if the computer is started when they are plugged in. Some users from the Ozgurlukicin.com forums said if they did "lsusb", the device was recognized. Some said it did not help and they had to reboot. I believe there are bug reports in Turkish, but you are free to report.
By the way, did you try your device with Pardus 2011? Maybe the problem is already solved?