Sure!
Option 1)
cd /openacs/packages
cvs log -Ddates
From the CVS book
-dDATES - Prints log information for only those revisions that match the date or date range given in DATES, a semicolon-separated list. Dates can be given in any of the usual date formats (see Date Formats earlier in this section) and can be combined into ranges as follows:
* DATE1<DATE2 - Selects revisions created between DATE1 and DATE2. If DATE1 is after DATE2, use > instead; otherwise, no log messages are retrieved.
* <DATE DATE> - All revisions from DATE or earlier.
* >DATE DATE< - All revisions from DATE or later.
* DATE - Just selects the most recent single revision from DATE or earlier.
You may use <= and >= instead of < and > to indicate an inclusive range (otherwise, ranges are exclusive). Multiple ranges should be separated with semicolons, for example
or use -r as you would for updates to compare to a certain branch, tag, or revision (only useful for individual files if you know the revision number.)
Option 2)
http://xarg.net/tools/cvs/
or
http://xarg.net/tools/cvs/change-sets?days=7
where days is how many days ago you want to see.