8.0 and schemes

Hi, In 7.1 one had the option to cammand: cadctl scheme schemename to switch between different IP arrangements at different sites. I have two problems related to this : 1] Where are the schemes now defined ? 2] If I connect eg via dial up ( from home ) then reactivating an ethernet connection later at work seems almost impossible. In /etc/sysconfig/network I have eth-pcmcia, eth-pcmcia-0 ( all created by Yast ), yet the command ifup eth-pcmcia-0 always responds with a message stating no details for given interface. Any suggestions most appreciated and TIA Francesco