Any potent video card you buy will most likely need the PCI-E connector, so yeah, it's time for a new one.
OK, if you'll follow this link provided by Leeky in reference to another thread, you should see the complexity and equipment necessary to determine the actual wattage and quality of a PSU, you should begin to see how disinterested I've become in this issue.
You can't keep asking the same question worded differently, and expect different answers.
If this were a decent supply in the first place it should have provided this information.
I've asked you to provide the ampere ratings on the PSU sticker, these haven't been forthcoming. In an early post you suggested that these were present. These would be more apt to enable extrapolation of wattage, than some silly question of whether or not the unit has "X" connector.
To wit; if it has say 20 amps on a single 12V rail, then it's probably around 300 watts. You could match these numbers up with different wattage units being sold, and figure generally what class the unit most resembles.
But yes, the lack of a PCI-E connector does seem to imply that this unit is not for the enthusiast market. It's an OEM rebranded something or other.
You can possibly find the manufacturer by Googling the UL listing number.
If this is an older unit, it won't have the wattage it did when it was new anyway.