Hi nick
visit here http://www.symantec.com/business/products/trialware.jsp?pcid=pcat_business_cont&pvid=1602_1
choose 'backup exex system recovery server edition' under the learn tab
(sometimes you'll have to either create or use your symantec ID to log in. it's free)
go to the bottom of the download page and click "download now" , agree to terms and conditions, choose the recovery disk download and download it.
Hope this helps
---Cheers
shirmal