You have to contact Sigma about the first lens.
They will need a complete description of the lens, including the serial number.
They may have to "re-chip" the lens (meaning install a new circuit board inside the lens"
Only they know if it will work with Canon DSLR cameras.
I am not familiar with Asperical 28-200 mm IF
If it is a Canon EOS lens, it will work with any of the Canon DSLR cameras.
If it is made by another company you have to contact that company.
..
I have a Canon EOS A2 that is an SLR, and I want to buy a digital Canon that I can use my two awesome lenses with; I have:

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic