I presume colburt was having the player's score be Time x 100 (e.g. 30 seconds would be 3,000 points); the rounding is just to get rid of excess decimal value (e.g. 30.125 seconds == 3012.5 points).
Yeah you'd need code blocks but since I've not used the Int64 type myself I'm not sure the exact syntax needed. Interestingly though, if Colbert's example is working, perhaps you can just submit the straight number value and it'll work?