I have the same problem.

WinHTTPrack version: WinHTTrack Website Copier 3.23 (+swf)
Operating System: Windows 2000 Professional 5.00.2195 
Service Pack 4
Trying some Url's in www.trygames.com

Filters:
+*.css +*.js -ad.doubleclick.net/*
+*.pdf
+*
+*.gif +*.jpg +*.png +*.tif +*.bmp
+*.zip +*.tar +*.tgz +*.gz +*.rar +*.z +*.exe
+*.mov +*.mpg +*.mpeg +*.avi +*.asf +*.mp3 +*.mp2 +*.rm 
+*.wav +*.vob +*.qt +*.vid +*.ac3 +*.wma +*.wmv

Limits: 
1
0
-
102400
-
-
-
25000
-
-


Thanks.