Student Financial Services was able to post financial aid packages on SIS yesterday for all students who had their aid paperwork submitted and complete.
If you are missing some paperwork (there is a separate "to do" list in SIS for financial aid), you have until April 30th to get everything submitted. After April 30th, some kinds of aid (including UVa grants...the kind of award you don't pay back) will not be part of your package.
If you have questions, you can contact the financial aid office.