I am using a different computer now but I had saved everything to iCloud and now I can find them.
Which iCloud service did you use at that time?
In 2007 there was no iCloud, only Mobile Me.
If you used iCloud to save your photos (after iCloud had replaced Mobile Me), we need to know the iCloud service you used - My Photo Stream, iCloud Drive, Shared albums, iCloud Photo Library. iCloud Photo Library is not an archival storage. It syncs and updates across all devices. If you deleted photos from your iCloud Photo Library on one device, they will be gone everywhere.