If you're content with things as they are, then that's fine with me. It's likely that other things will crop up (might just add to the excitement), so if you're interested in debugging the issue, then that's fine with me too. The main download thread (
bottom of page 5) has a fairly detailed installation example, consider reviewing it and seeing if one of those steps looks like something that got missed (or maybe you're running without D2SE and feel like including it, D2SE certainly avoids a lot of issues).
If you're already playing with D2SE, then make sure you start the mod using the "Start Plugin" (use mod files) button rather than the "Start D2" (ignore mod files) button beside it. If you're playing on the realm (therefore using the files), then using the wrong button might explain why you're not seeing things (play the game without the files).
I suppose if someone were using the CoreFiles download from another version of HU, but then playing with the v1.7 patch_d2.mpq file, they might encounter the same issue too (where the game can be played but with display bugs), but I've never tried that (another expected issue would be showing resistance max at 75 instead of 50 for you or your Merc (their display is handled separately from players)).