You might give VueScan a look. You can try it for free and pay for it if it works.
Assuming this is your scanner, it appears to be supported by VueScan; note the faint print at the bottom of the page which reads "Mac OS X 10.4-10.7 (Lion)."
Edit: BTW, this is really a new topic and as such we'll probably move it to the appropriate forum later today.
Last edited by dkmarsh; 05/21/1209:18 AM.
dkmarsh—member, FineTunedMac Co-op Board of Directors