Windows 7 - Sapphire RADEON 9250

I am thinking of getting the graphics card named in the title. It is £15, the chap who is selling says it does not fit in his computer because of the slot (pci not agp). How do I tell the difference in my computer just looking at the slot. The card has Three seperate connecting bits where it fits into the motherboard. My computer runs with onboard graphics and is a windows seven machine, also two years old.
Thanks everyone.
Sorry missed the specs..................
Sapphire RADEON 9250 - graphics adapter - Radeon 9250 - 256 MB Device Type Graphics adapter Enclosure Type Plug-in card Interface Type AGP 8x Graphics Processor / Vendor ATI Radeon 9250 Core Clock Speed 240 MHz Clock Speed 240 MHz API Supported OpenGL, DirectX 9.0, DirectX 8.1 Video Memory Installed ( Max ) 256 MB - DDR SDRAM Video Output 2048 x 1536 TV Interface TV out System

You want to avoid that card at all costs unless you want one that has (and never will) zero Windows 7 support. In fact the last driver made for it was for XP back in 2006. You want a graphics card better off looking at something a lot more recent.

thanks stormy13 will take your advice.