On XP and Win 9x I could easily do a search on the files on my C: drive modified within a time period e.g. the last day using the Search / Find feature.

I can't seem to find this on Vista (Home Premium)?

Search in Google.

http://www.howtogeek.com/howto/windows-vista/view-last-modified-files-on-windows-vista/
http://www.howtogeek.com/howto/windows-vista/find-files-within-a-date-range-with-windows-vista-search/
http://windows.microsoft.com/en-US/windows-vista/Searching-in-Windows-Vista-Part-1-Secrets-of-the-Search-box
http://windows.microsoft.com/en-US/windows-vista/Tips-for-finding-files
http://www.askdavetaylor.com/search_for_files_in_windows_vista.html
http://www.microsoft.com/windows/products/winfamily/desktopsearch/technicalresources/advquery.mspx

K-Meleon in Spanish

I install certain freeware utilities before working with Vista, one of them is an excellent search alternative called Agent Ransack.

Homepage:
http://www.mythicsoft.com/agentransack

I also use it all the time in Win98. It's small, light, simple freeware and doesn't interfere with anything else, when installed it adds an Agent Ransack item to the folder/drive context menu. It has a preview window to show the lines 'containing text' searched for, which has been expecially useful in my days with K-Meleon.

Example screenshot:
http://i.imagehost.org/0344/agentransack.gif
(search/sort by modified is easy)

The Vista search is beyond useless to me, like so many other things In Vista it's dumbed down, completely unintuitive to a techie, and it deliberately hides stuff. Agent Ransack is a breath of fresh air on Vista, although it doesn't use a database - which I don't like anyway.

http://www.mythicsoft.com/agentransack/Page.aspx?page=history

Thanks for both of your replies. Agent Ransack hasn't been updated since 2003 prior to Vista - is this 100% compatible/okay for Vista?