Yast 2 and Sane in 8.2

Try to keep away from version 9.0 until I have 8.2 working properly. My scanner has an external backend and is seen in Yast. After the new install I even had a list of possible scanners to choose from but apart from being there on the list the install via Yast did not work. I was told that with a later sane >1.10 and an updated kernel my problems would be over. I have patched my kernel to 2.4.2-100 and have got the sane 1.0.12.0. But now I have also lost the list of possible scanners. Where can I find this list and how can I proceed to get my scanner installed. If not by Yast, than manual. For the record, the scanner is a HP Scanjet 3400C which could work (it did fine under 8.1) with the niash backend.