Last year I got one of these boards, took a picture, removed all the bad caps and stored them in a baggy so I could replace them when I finally had time (and the caps). I actually FOUND the old caps today, and made up a basic schematic to show what went where.
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I would replace ALL of these caps, especially if yours are Lelon brand, like mine were. The three large 2200uf caps at the top were KZE (same color scheme but different brand) and were totally flat and showed no signs of failure. I'm no expert on these things, but I'd say if you have replacements for them that are of good quality you could replace them, but I plan to leave them unless I have problems later.
The two 8x18mm caps right near the ATX socket were strangely the same rating as the other 10x20mm caps, 1500uf 6.3v. Even stranger, their locations on the board also have holes for larger diameter caps. I will probably just replace these with the same 10x20mm caps I plan to use in the other locations. I checked with my DMM and there is continuity between both of the solder pads for these caps, so either size should work.
I think these boards are worth saving though. They have Via Apollo Pro133T chipsets, Tualatin support, 4x AGP, ATA 100 and an ISA slot. A nice combination! I haven't actually used mine yet (need to replace the caps) so hopefully the BIOS is set up as well as other Pro133T boards from more well known brands.
EDIT: Forgot to mention, the old pictures I took of the board before removing the caps show all of the caps oriented properly, with the "-" stripe over the white shaded portion on the board.